17981697720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{1657}}^1\times {\mathrm{12919}}^1$

素因数の和:14597

約数の個数: 128

約数和(自身を含む): 61693516800

約数和(自身を除く): 43711819080

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 1657, 3314, 4971, 6628, 8285, 9942, 11599, 12919, 13256, 16570, 19884, 23198, 24855, 25838, 33140, 34797, 38757, 39768, 46396, 49710, 51676, 57995, 64595, 66280, 69594, 77514, 90433, 92792, 99420, 103352, 115990, 129190, 139188, 155028, 173985, 180866, 193785, 198840, 231980, 258380, 271299, 278376, 310056, 347970, 361732, 387570, 452165, 463960, 516760, 542598, 695940, 723464, 775140, 904330, 1085196, 1356495, 1391880, 1550280, 1808660, 2170392, 2712990, 3617320, 5425980, 10851960, 21406783, 42813566, 64220349, 85627132, 107033915, 128440698, 149847481, 171254264, 214067830, 256881396, 299694962, 321101745, 428135660, 449542443, 513762792, 599389924, 642203490, 749237405, 856271320, 899084886, 1198779848, 1284406980, 1498474810, 1798169772, 2247712215, 2568813960, 2996949620, 3596339544, 4495424430, 5993899240, 8990848860, 17981697720]

約数ペア:

[(1, 17981697720), (2, 8990848860), (3, 5993899240), (4, 4495424430), (5, 3596339544), (6, 2996949620), (7, 2568813960), (8, 2247712215), (10, 1798169772), (12, 1498474810), (14, 1284406980), (15, 1198779848), (20, 899084886), (21, 856271320), (24, 749237405), (28, 642203490), (30, 599389924), (35, 513762792), (40, 449542443), (42, 428135660), (56, 321101745), (60, 299694962), (70, 256881396), (84, 214067830), (105, 171254264), (120, 149847481), (140, 128440698), (168, 107033915), (210, 85627132), (280, 64220349), (420, 42813566), (840, 21406783), (1657, 10851960), (3314, 5425980), (4971, 3617320), (6628, 2712990), (8285, 2170392), (9942, 1808660), (11599, 1550280), (12919, 1391880), (13256, 1356495), (16570, 1085196), (19884, 904330), (23198, 775140), (24855, 723464), (25838, 695940), (33140, 542598), (34797, 516760), (38757, 463960), (39768, 452165), (46396, 387570), (49710, 361732), (51676, 347970), (57995, 310056), (64595, 278376), (66280, 271299), (69594, 258380), (77514, 231980), (90433, 198840), (92792, 193785), (99420, 180866), (103352, 173985), (115990, 155028), (129190, 139188)]