18138960

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1$

素因数の和:146

約数の個数: 240

約数和(自身を含む): 71959680

約数和(自身を除く): 53820720

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, 40, 42, 45, 48, 56, 59, 60, 61, 63, 70, 72, 80, 84, 90, 105, 112, 118, 120, 122, 126, 140, 144, 168, 177, 180, 183, 210, 236, 240, 244, 252, 280, 295, 305, 315, 336, 354, 360, 366, 413, 420, 427, 472, 488, 504, 531, 549, 560, 590, 610, 630, 708, 720, 732, 826, 840, 854, 885, 915, 944, 976, 1008, 1062, 1098, 1180, 1220, 1239, 1260, 1281, 1416, 1464, 1652, 1680, 1708, 1770, 1830, 2065, 2124, 2135, 2196, 2360, 2440, 2478, 2520, 2562, 2655, 2745, 2832, 2928, 3304, 3416, 3540, 3599, 3660, 3717, 3843, 4130, 4248, 4270, 4392, 4720, 4880, 4956, 5040, 5124, 5310, 5490, 6195, 6405, 6608, 6832, 7080, 7198, 7320, 7434, 7686, 8260, 8496, 8540, 8784, 9912, 10248, 10620, 10797, 10980, 12390, 12810, 14160, 14396, 14640, 14868, 15372, 16520, 17080, 17995, 18585, 19215, 19824, 20496, 21240, 21594, 21960, 24780, 25193, 25620, 28792, 29736, 30744, 32391, 33040, 34160, 35990, 37170, 38430, 42480, 43188, 43920, 49560, 50386, 51240, 53985, 57584, 59472, 61488, 64782, 71980, 74340, 75579, 76860, 86376, 99120, 100772, 102480, 107970, 125965, 129564, 143960, 148680, 151158, 153720, 161955, 172752, 201544, 215940, 226737, 251930, 259128, 287920, 297360, 302316, 307440, 323910, 377895, 403088, 431880, 453474, 503860, 518256, 604632, 647820, 755790, 863760, 906948, 1007720, 1133685, 1209264, 1295640, 1511580, 1813896, 2015440, 2267370, 2591280, 3023160, 3627792, 4534740, 6046320, 9069480, 18138960]

約数ペア:

[(1, 18138960), (2, 9069480), (3, 6046320), (4, 4534740), (5, 3627792), (6, 3023160), (7, 2591280), (8, 2267370), (9, 2015440), (10, 1813896), (12, 1511580), (14, 1295640), (15, 1209264), (16, 1133685), (18, 1007720), (20, 906948), (21, 863760), (24, 755790), (28, 647820), (30, 604632), (35, 518256), (36, 503860), (40, 453474), (42, 431880), (45, 403088), (48, 377895), (56, 323910), (59, 307440), (60, 302316), (61, 297360), (63, 287920), (70, 259128), (72, 251930), (80, 226737), (84, 215940), (90, 201544), (105, 172752), (112, 161955), (118, 153720), (120, 151158), (122, 148680), (126, 143960), (140, 129564), (144, 125965), (168, 107970), (177, 102480), (180, 100772), (183, 99120), (210, 86376), (236, 76860), (240, 75579), (244, 74340), (252, 71980), (280, 64782), (295, 61488), (305, 59472), (315, 57584), (336, 53985), (354, 51240), (360, 50386), (366, 49560), (413, 43920), (420, 43188), (427, 42480), (472, 38430), (488, 37170), (504, 35990), (531, 34160), (549, 33040), (560, 32391), (590, 30744), (610, 29736), (630, 28792), (708, 25620), (720, 25193), (732, 24780), (826, 21960), (840, 21594), (854, 21240), (885, 20496), (915, 19824), (944, 19215), (976, 18585), (1008, 17995), (1062, 17080), (1098, 16520), (1180, 15372), (1220, 14868), (1239, 14640), (1260, 14396), (1281, 14160), (1416, 12810), (1464, 12390), (1652, 10980), (1680, 10797), (1708, 10620), (1770, 10248), (1830, 9912), (2065, 8784), (2124, 8540), (2135, 8496), (2196, 8260), (2360, 7686), (2440, 7434), (2478, 7320), (2520, 7198), (2562, 7080), (2655, 6832), (2745, 6608), (2832, 6405), (2928, 6195), (3304, 5490), (3416, 5310), (3540, 5124), (3599, 5040), (3660, 4956), (3717, 4880), (3843, 4720), (4130, 4392), (4248, 4270)]