31471880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71527}}^1$

素因数の和:71549

約数の個数: 32

約数和(自身を含む): 77250240

約数和(自身を除く): 45778360

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 71527, 143054, 286108, 357635, 572216, 715270, 786797, 1430540, 1573594, 2861080, 3147188, 3933985, 6294376, 7867970, 15735940, 31471880]

約数ペア:

[(1, 31471880), (2, 15735940), (4, 7867970), (5, 6294376), (8, 3933985), (10, 3147188), (11, 2861080), (20, 1573594), (22, 1430540), (40, 786797), (44, 715270), (55, 572216), (88, 357635), (110, 286108), (220, 143054), (440, 71527)]