1256307980

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{461}}^1\times {\mathrm{1531}}^1$

素因数の和:2090

約数の個数: 48

約数和(自身を含む): 2675423520

約数和(自身を除く): 1419115540

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 461, 890, 922, 1531, 1780, 1844, 2305, 3062, 4610, 6124, 7655, 9220, 15310, 30620, 41029, 82058, 136259, 164116, 205145, 272518, 410290, 545036, 681295, 705791, 820580, 1362590, 1411582, 2725180, 2823164, 3528955, 7057910, 14115820, 62815399, 125630798, 251261596, 314076995, 628153990, 1256307980]

約数ペア:

[(1, 1256307980), (2, 628153990), (4, 314076995), (5, 251261596), (10, 125630798), (20, 62815399), (89, 14115820), (178, 7057910), (356, 3528955), (445, 2823164), (461, 2725180), (890, 1411582), (922, 1362590), (1531, 820580), (1780, 705791), (1844, 681295), (2305, 545036), (3062, 410290), (4610, 272518), (6124, 205145), (7655, 164116), (9220, 136259), (15310, 82058), (30620, 41029)]