231920

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{223}}^1$

素因数の和:249

約数の個数: 40

約数和(自身を含む): 583296

約数和(自身を除く): 351376

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 223, 260, 446, 520, 892, 1040, 1115, 1784, 2230, 2899, 3568, 4460, 5798, 8920, 11596, 14495, 17840, 23192, 28990, 46384, 57980, 115960, 231920]

約数ペア:

[(1, 231920), (2, 115960), (4, 57980), (5, 46384), (8, 28990), (10, 23192), (13, 17840), (16, 14495), (20, 11596), (26, 8920), (40, 5798), (52, 4460), (65, 3568), (80, 2899), (104, 2230), (130, 1784), (208, 1115), (223, 1040), (260, 892), (446, 520)]