661984140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{379}}^1\times {\mathrm{677}}^1$

素因数の和:1111

約数の個数: 96

約数和(自身を含む): 1904474880

約数和(自身を除く): 1242490740

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 43, 60, 86, 129, 172, 215, 258, 379, 430, 516, 645, 677, 758, 860, 1137, 1290, 1354, 1516, 1895, 2031, 2274, 2580, 2708, 3385, 3790, 4062, 4548, 5685, 6770, 7580, 8124, 10155, 11370, 13540, 16297, 20310, 22740, 29111, 32594, 40620, 48891, 58222, 65188, 81485, 87333, 97782, 116444, 145555, 162970, 174666, 195564, 244455, 256583, 291110, 325940, 349332, 436665, 488910, 513166, 582220, 769749, 873330, 977820, 1026332, 1282915, 1539498, 1746660, 2565830, 3078996, 3848745, 5131660, 7697490, 11033069, 15394980, 22066138, 33099207, 44132276, 55165345, 66198414, 110330690, 132396828, 165496035, 220661380, 330992070, 661984140]

約数ペア:

[(1, 661984140), (2, 330992070), (3, 220661380), (4, 165496035), (5, 132396828), (6, 110330690), (10, 66198414), (12, 55165345), (15, 44132276), (20, 33099207), (30, 22066138), (43, 15394980), (60, 11033069), (86, 7697490), (129, 5131660), (172, 3848745), (215, 3078996), (258, 2565830), (379, 1746660), (430, 1539498), (516, 1282915), (645, 1026332), (677, 977820), (758, 873330), (860, 769749), (1137, 582220), (1290, 513166), (1354, 488910), (1516, 436665), (1895, 349332), (2031, 325940), (2274, 291110), (2580, 256583), (2708, 244455), (3385, 195564), (3790, 174666), (4062, 162970), (4548, 145555), (5685, 116444), (6770, 97782), (7580, 87333), (8124, 81485), (10155, 65188), (11370, 58222), (13540, 48891), (16297, 40620), (20310, 32594), (22740, 29111)]