31912840

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{10099}}^1$

素因数の和:10189

約数の個数: 32

約数和(自身を含む): 72720000

約数和(自身を除く): 40807160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 10099, 20198, 40396, 50495, 80792, 100990, 201980, 403960, 797821, 1595642, 3191284, 3989105, 6382568, 7978210, 15956420, 31912840]

約数ペア:

[(1, 31912840), (2, 15956420), (4, 7978210), (5, 6382568), (8, 3989105), (10, 3191284), (20, 1595642), (40, 797821), (79, 403960), (158, 201980), (316, 100990), (395, 80792), (632, 50495), (790, 40396), (1580, 20198), (3160, 10099)]