291238450

素因数分解:

$2^1\times 5^2\times {\mathrm{71}}^1\times {\mathrm{82039}}^1$

素因数の和:82122

約数の個数: 24

約数和(自身を含む): 549339840

約数和(自身を除く): 258101390

約数列:

[1, 2, 5, 10, 25, 50, 71, 142, 355, 710, 1775, 3550, 82039, 164078, 410195, 820390, 2050975, 4101950, 5824769, 11649538, 29123845, 58247690, 145619225, 291238450]

約数ペア:

[(1, 291238450), (2, 145619225), (5, 58247690), (10, 29123845), (25, 11649538), (50, 5824769), (71, 4101950), (142, 2050975), (355, 820390), (710, 410195), (1775, 164078), (3550, 82039)]