20326320

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1$

素因数の和:172

約数の個数: 240

約数和(自身を含む): 80857920

約数和(自身を除く): 60531600

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 37, 40, 42, 45, 48, 56, 60, 63, 70, 72, 74, 80, 84, 90, 105, 109, 111, 112, 120, 126, 140, 144, 148, 168, 180, 185, 210, 218, 222, 240, 252, 259, 280, 296, 315, 327, 333, 336, 360, 370, 420, 436, 444, 504, 518, 545, 555, 560, 592, 630, 654, 666, 720, 740, 763, 777, 840, 872, 888, 981, 1008, 1036, 1090, 1110, 1260, 1295, 1308, 1332, 1480, 1526, 1554, 1635, 1665, 1680, 1744, 1776, 1962, 2072, 2180, 2220, 2289, 2331, 2520, 2590, 2616, 2664, 2960, 3052, 3108, 3270, 3330, 3815, 3885, 3924, 4033, 4144, 4360, 4440, 4578, 4662, 4905, 5040, 5180, 5232, 5328, 6104, 6216, 6540, 6660, 6867, 7630, 7770, 7848, 8066, 8720, 8880, 9156, 9324, 9810, 10360, 11445, 11655, 12099, 12208, 12432, 13080, 13320, 13734, 15260, 15540, 15696, 16132, 18312, 18648, 19620, 20165, 20720, 22890, 23310, 24198, 26160, 26640, 27468, 28231, 30520, 31080, 32264, 34335, 36297, 36624, 37296, 39240, 40330, 45780, 46620, 48396, 54936, 56462, 60495, 61040, 62160, 64528, 68670, 72594, 78480, 80660, 84693, 91560, 93240, 96792, 109872, 112924, 120990, 137340, 141155, 145188, 161320, 169386, 181485, 183120, 186480, 193584, 225848, 241980, 254079, 274680, 282310, 290376, 322640, 338772, 362970, 423465, 451696, 483960, 508158, 549360, 564620, 580752, 677544, 725940, 846930, 967920, 1016316, 1129240, 1270395, 1355088, 1451880, 1693860, 2032632, 2258480, 2540790, 2903760, 3387720, 4065264, 5081580, 6775440, 10163160, 20326320]

約数ペア:

[(1, 20326320), (2, 10163160), (3, 6775440), (4, 5081580), (5, 4065264), (6, 3387720), (7, 2903760), (8, 2540790), (9, 2258480), (10, 2032632), (12, 1693860), (14, 1451880), (15, 1355088), (16, 1270395), (18, 1129240), (20, 1016316), (21, 967920), (24, 846930), (28, 725940), (30, 677544), (35, 580752), (36, 564620), (37, 549360), (40, 508158), (42, 483960), (45, 451696), (48, 423465), (56, 362970), (60, 338772), (63, 322640), (70, 290376), (72, 282310), (74, 274680), (80, 254079), (84, 241980), (90, 225848), (105, 193584), (109, 186480), (111, 183120), (112, 181485), (120, 169386), (126, 161320), (140, 145188), (144, 141155), (148, 137340), (168, 120990), (180, 112924), (185, 109872), (210, 96792), (218, 93240), (222, 91560), (240, 84693), (252, 80660), (259, 78480), (280, 72594), (296, 68670), (315, 64528), (327, 62160), (333, 61040), (336, 60495), (360, 56462), (370, 54936), (420, 48396), (436, 46620), (444, 45780), (504, 40330), (518, 39240), (545, 37296), (555, 36624), (560, 36297), (592, 34335), (630, 32264), (654, 31080), (666, 30520), (720, 28231), (740, 27468), (763, 26640), (777, 26160), (840, 24198), (872, 23310), (888, 22890), (981, 20720), (1008, 20165), (1036, 19620), (1090, 18648), (1110, 18312), (1260, 16132), (1295, 15696), (1308, 15540), (1332, 15260), (1480, 13734), (1526, 13320), (1554, 13080), (1635, 12432), (1665, 12208), (1680, 12099), (1744, 11655), (1776, 11445), (1962, 10360), (2072, 9810), (2180, 9324), (2220, 9156), (2289, 8880), (2331, 8720), (2520, 8066), (2590, 7848), (2616, 7770), (2664, 7630), (2960, 6867), (3052, 6660), (3108, 6540), (3270, 6216), (3330, 6104), (3815, 5328), (3885, 5232), (3924, 5180), (4033, 5040), (4144, 4905), (4360, 4662), (4440, 4578)]