20175288980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{451753}}^1$

素因数の和:451809

約数の個数: 96

約数和(自身を含む): 54644163840

約数和(自身を除く): 34468874860

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 29, 35, 44, 55, 58, 70, 77, 110, 116, 140, 145, 154, 203, 220, 290, 308, 319, 385, 406, 580, 638, 770, 812, 1015, 1276, 1540, 1595, 2030, 2233, 3190, 4060, 4466, 6380, 8932, 11165, 22330, 44660, 451753, 903506, 1807012, 2258765, 3162271, 4517530, 4969283, 6324542, 9035060, 9938566, 12649084, 13100837, 15811355, 19877132, 24846415, 26201674, 31622710, 34784981, 49692830, 52403348, 63245420, 65504185, 69569962, 91705859, 99385660, 131008370, 139139924, 144109207, 173924905, 183411718, 262016740, 288218414, 347849810, 366823436, 458529295, 576436828, 695699620, 720546035, 917058590, 1008764449, 1441092070, 1834117180, 2017528898, 2882184140, 4035057796, 5043822245, 10087644490, 20175288980]

約数ペア:

[(1, 20175288980), (2, 10087644490), (4, 5043822245), (5, 4035057796), (7, 2882184140), (10, 2017528898), (11, 1834117180), (14, 1441092070), (20, 1008764449), (22, 917058590), (28, 720546035), (29, 695699620), (35, 576436828), (44, 458529295), (55, 366823436), (58, 347849810), (70, 288218414), (77, 262016740), (110, 183411718), (116, 173924905), (140, 144109207), (145, 139139924), (154, 131008370), (203, 99385660), (220, 91705859), (290, 69569962), (308, 65504185), (319, 63245420), (385, 52403348), (406, 49692830), (580, 34784981), (638, 31622710), (770, 26201674), (812, 24846415), (1015, 19877132), (1276, 15811355), (1540, 13100837), (1595, 12649084), (2030, 9938566), (2233, 9035060), (3190, 6324542), (4060, 4969283), (4466, 4517530), (6380, 3162271), (8932, 2258765), (11165, 1807012), (22330, 903506), (44660, 451753)]