81305280

素因数分解:

$2^6\times 3^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1$

素因数の和:176

約数の個数: 336

約数和(自身を含む): 331256640

約数和(自身を除く): 249951360

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 37, 40, 42, 45, 48, 56, 60, 63, 64, 70, 72, 74, 80, 84, 90, 96, 105, 109, 111, 112, 120, 126, 140, 144, 148, 160, 168, 180, 185, 192, 210, 218, 222, 224, 240, 252, 259, 280, 288, 296, 315, 320, 327, 333, 336, 360, 370, 420, 436, 444, 448, 480, 504, 518, 545, 555, 560, 576, 592, 630, 654, 666, 672, 720, 740, 763, 777, 840, 872, 888, 960, 981, 1008, 1036, 1090, 1110, 1120, 1184, 1260, 1295, 1308, 1332, 1344, 1440, 1480, 1526, 1554, 1635, 1665, 1680, 1744, 1776, 1962, 2016, 2072, 2180, 2220, 2240, 2289, 2331, 2368, 2520, 2590, 2616, 2664, 2880, 2960, 3052, 3108, 3270, 3330, 3360, 3488, 3552, 3815, 3885, 3924, 4032, 4033, 4144, 4360, 4440, 4578, 4662, 4905, 5040, 5180, 5232, 5328, 5920, 6104, 6216, 6540, 6660, 6720, 6867, 6976, 7104, 7630, 7770, 7848, 8066, 8288, 8720, 8880, 9156, 9324, 9810, 10080, 10360, 10464, 10656, 11445, 11655, 11840, 12099, 12208, 12432, 13080, 13320, 13734, 15260, 15540, 15696, 16132, 16576, 17440, 17760, 18312, 18648, 19620, 20160, 20165, 20720, 20928, 21312, 22890, 23310, 24198, 24416, 24864, 26160, 26640, 27468, 28231, 30520, 31080, 31392, 32264, 34335, 34880, 35520, 36297, 36624, 37296, 39240, 40330, 41440, 45780, 46620, 48396, 48832, 49728, 52320, 53280, 54936, 56462, 60495, 61040, 62160, 62784, 64528, 68670, 72594, 73248, 74592, 78480, 80660, 82880, 84693, 91560, 93240, 96792, 104640, 106560, 109872, 112924, 120990, 122080, 124320, 129056, 137340, 141155, 145188, 146496, 149184, 156960, 161320, 169386, 181485, 183120, 186480, 193584, 219744, 225848, 241980, 244160, 248640, 254079, 258112, 274680, 282310, 290376, 313920, 322640, 338772, 362970, 366240, 372960, 387168, 423465, 439488, 451696, 483960, 508158, 549360, 564620, 580752, 645280, 677544, 725940, 732480, 745920, 774336, 846930, 903392, 967920, 1016316, 1098720, 1129240, 1161504, 1270395, 1290560, 1355088, 1451880, 1693860, 1806784, 1935840, 2032632, 2197440, 2258480, 2323008, 2540790, 2710176, 2903760, 3387720, 3871680, 4065264, 4516960, 5081580, 5420352, 5807520, 6775440, 8130528, 9033920, 10163160, 11615040, 13550880, 16261056, 20326320, 27101760, 40652640, 81305280]

約数ペア:

[(1, 81305280), (2, 40652640), (3, 27101760), (4, 20326320), (5, 16261056), (6, 13550880), (7, 11615040), (8, 10163160), (9, 9033920), (10, 8130528), (12, 6775440), (14, 5807520), (15, 5420352), (16, 5081580), (18, 4516960), (20, 4065264), (21, 3871680), (24, 3387720), (28, 2903760), (30, 2710176), (32, 2540790), (35, 2323008), (36, 2258480), (37, 2197440), (40, 2032632), (42, 1935840), (45, 1806784), (48, 1693860), (56, 1451880), (60, 1355088), (63, 1290560), (64, 1270395), (70, 1161504), (72, 1129240), (74, 1098720), (80, 1016316), (84, 967920), (90, 903392), (96, 846930), (105, 774336), (109, 745920), (111, 732480), (112, 725940), (120, 677544), (126, 645280), (140, 580752), (144, 564620), (148, 549360), (160, 508158), (168, 483960), (180, 451696), (185, 439488), (192, 423465), (210, 387168), (218, 372960), (222, 366240), (224, 362970), (240, 338772), (252, 322640), (259, 313920), (280, 290376), (288, 282310), (296, 274680), (315, 258112), (320, 254079), (327, 248640), (333, 244160), (336, 241980), (360, 225848), (370, 219744), (420, 193584), (436, 186480), (444, 183120), (448, 181485), (480, 169386), (504, 161320), (518, 156960), (545, 149184), (555, 146496), (560, 145188), (576, 141155), (592, 137340), (630, 129056), (654, 124320), (666, 122080), (672, 120990), (720, 112924), (740, 109872), (763, 106560), (777, 104640), (840, 96792), (872, 93240), (888, 91560), (960, 84693), (981, 82880), (1008, 80660), (1036, 78480), (1090, 74592), (1110, 73248), (1120, 72594), (1184, 68670), (1260, 64528), (1295, 62784), (1308, 62160), (1332, 61040), (1344, 60495), (1440, 56462), (1480, 54936), (1526, 53280), (1554, 52320), (1635, 49728), (1665, 48832), (1680, 48396), (1744, 46620), (1776, 45780), (1962, 41440), (2016, 40330), (2072, 39240), (2180, 37296), (2220, 36624), (2240, 36297), (2289, 35520), (2331, 34880), (2368, 34335), (2520, 32264), (2590, 31392), (2616, 31080), (2664, 30520), (2880, 28231), (2960, 27468), (3052, 26640), (3108, 26160), (3270, 24864), (3330, 24416), (3360, 24198), (3488, 23310), (3552, 22890), (3815, 21312), (3885, 20928), (3924, 20720), (4032, 20165), (4033, 20160), (4144, 19620), (4360, 18648), (4440, 18312), (4578, 17760), (4662, 17440), (4905, 16576), (5040, 16132), (5180, 15696), (5232, 15540), (5328, 15260), (5920, 13734), (6104, 13320), (6216, 13080), (6540, 12432), (6660, 12208), (6720, 12099), (6867, 11840), (6976, 11655), (7104, 11445), (7630, 10656), (7770, 10464), (7848, 10360), (8066, 10080), (8288, 9810), (8720, 9324), (8880, 9156)]