31359280

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{5521}}^1$

素因数の和:5605

約数の個数: 40

約数和(自身を含む): 73950624

約数和(自身を除く): 42591344

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5521, 5680, 11042, 22084, 27605, 44168, 55210, 88336, 110420, 220840, 391991, 441680, 783982, 1567964, 1959955, 3135928, 3919910, 6271856, 7839820, 15679640, 31359280]

約数ペア:

[(1, 31359280), (2, 15679640), (4, 7839820), (5, 6271856), (8, 3919910), (10, 3135928), (16, 1959955), (20, 1567964), (40, 783982), (71, 441680), (80, 391991), (142, 220840), (284, 110420), (355, 88336), (568, 55210), (710, 44168), (1136, 27605), (1420, 22084), (2840, 11042), (5521, 5680)]