66899240

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{53951}}^1$

素因数の和:53993

約数の個数: 32

約数和(自身を含む): 155381760

約数和(自身を除く): 88482520

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 53951, 107902, 215804, 269755, 431608, 539510, 1079020, 1672481, 2158040, 3344962, 6689924, 8362405, 13379848, 16724810, 33449620, 66899240]

約数ペア:

[(1, 66899240), (2, 33449620), (4, 16724810), (5, 13379848), (8, 8362405), (10, 6689924), (20, 3344962), (31, 2158040), (40, 1672481), (62, 1079020), (124, 539510), (155, 431608), (248, 269755), (310, 215804), (620, 107902), (1240, 53951)]