916891960

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{379}}^1\times {\mathrm{1951}}^1$

素因数の和:2372

約数の個数: 64

約数和(自身を含む): 2136268800

約数和(自身を除く): 1219376840

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 379, 620, 758, 1240, 1516, 1895, 1951, 3032, 3790, 3902, 7580, 7804, 9755, 11749, 15160, 15608, 19510, 23498, 39020, 46996, 58745, 60481, 78040, 93992, 117490, 120962, 234980, 241924, 302405, 469960, 483848, 604810, 739429, 1209620, 1478858, 2419240, 2957716, 3697145, 5915432, 7394290, 14788580, 22922299, 29577160, 45844598, 91689196, 114611495, 183378392, 229222990, 458445980, 916891960]

約数ペア:

[(1, 916891960), (2, 458445980), (4, 229222990), (5, 183378392), (8, 114611495), (10, 91689196), (20, 45844598), (31, 29577160), (40, 22922299), (62, 14788580), (124, 7394290), (155, 5915432), (248, 3697145), (310, 2957716), (379, 2419240), (620, 1478858), (758, 1209620), (1240, 739429), (1516, 604810), (1895, 483848), (1951, 469960), (3032, 302405), (3790, 241924), (3902, 234980), (7580, 120962), (7804, 117490), (9755, 93992), (11749, 78040), (15160, 60481), (15608, 58745), (19510, 46996), (23498, 39020)]