31452520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71483}}^1$

素因数の和:71505

約数の個数: 32

約数和(自身を含む): 77202720

約数和(自身を除く): 45750200

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 71483, 142966, 285932, 357415, 571864, 714830, 786313, 1429660, 1572626, 2859320, 3145252, 3931565, 6290504, 7863130, 15726260, 31452520]

約数ペア:

[(1, 31452520), (2, 15726260), (4, 7863130), (5, 6290504), (8, 3931565), (10, 3145252), (11, 2859320), (20, 1572626), (22, 1429660), (40, 786313), (44, 714830), (55, 571864), (88, 357415), (110, 285932), (220, 142966), (440, 71483)]