20180920360

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{9719}}^1$

素因数の和:9851

約数の個数: 128

約数和(自身を含む): 49464691200

約数和(自身を除く): 29283770840

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 37, 40, 46, 61, 74, 92, 115, 122, 148, 184, 185, 230, 244, 296, 305, 370, 460, 488, 610, 740, 851, 920, 1220, 1403, 1480, 1702, 2257, 2440, 2806, 3404, 4255, 4514, 5612, 6808, 7015, 8510, 9028, 9719, 11224, 11285, 14030, 17020, 18056, 19438, 22570, 28060, 34040, 38876, 45140, 48595, 51911, 56120, 77752, 90280, 97190, 103822, 194380, 207644, 223537, 259555, 359603, 388760, 415288, 447074, 519110, 592859, 719206, 894148, 1038220, 1117685, 1185718, 1438412, 1788296, 1798015, 2076440, 2235370, 2371436, 2876824, 2964295, 3596030, 4470740, 4742872, 5928590, 7192060, 8270869, 8941480, 11857180, 13635757, 14384120, 16541738, 21935783, 23714360, 27271514, 33083476, 41354345, 43871566, 54543028, 66166952, 68178785, 82708690, 87743132, 109086056, 109678915, 136357570, 165417380, 175486264, 219357830, 272715140, 330834760, 438715660, 504523009, 545430280, 877431320, 1009046018, 2018092036, 2522615045, 4036184072, 5045230090, 10090460180, 20180920360]

約数ペア:

[(1, 20180920360), (2, 10090460180), (4, 5045230090), (5, 4036184072), (8, 2522615045), (10, 2018092036), (20, 1009046018), (23, 877431320), (37, 545430280), (40, 504523009), (46, 438715660), (61, 330834760), (74, 272715140), (92, 219357830), (115, 175486264), (122, 165417380), (148, 136357570), (184, 109678915), (185, 109086056), (230, 87743132), (244, 82708690), (296, 68178785), (305, 66166952), (370, 54543028), (460, 43871566), (488, 41354345), (610, 33083476), (740, 27271514), (851, 23714360), (920, 21935783), (1220, 16541738), (1403, 14384120), (1480, 13635757), (1702, 11857180), (2257, 8941480), (2440, 8270869), (2806, 7192060), (3404, 5928590), (4255, 4742872), (4514, 4470740), (5612, 3596030), (6808, 2964295), (7015, 2876824), (8510, 2371436), (9028, 2235370), (9719, 2076440), (11224, 1798015), (11285, 1788296), (14030, 1438412), (17020, 1185718), (18056, 1117685), (19438, 1038220), (22570, 894148), (28060, 719206), (34040, 592859), (38876, 519110), (45140, 447074), (48595, 415288), (51911, 388760), (56120, 359603), (77752, 259555), (90280, 223537), (97190, 207644), (103822, 194380)]