291254990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{117917}}^1$

素因数の和:117956

約数の個数: 32

約数和(自身を含む): 594306720

約数和(自身を除く): 303051730

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 130, 190, 247, 494, 1235, 2470, 117917, 235834, 589585, 1179170, 1532921, 2240423, 3065842, 4480846, 7664605, 11202115, 15329210, 22404230, 29125499, 58250998, 145627495, 291254990]

約数ペア:

[(1, 291254990), (2, 145627495), (5, 58250998), (10, 29125499), (13, 22404230), (19, 15329210), (26, 11202115), (38, 7664605), (65, 4480846), (95, 3065842), (130, 2240423), (190, 1532921), (247, 1179170), (494, 589585), (1235, 235834), (2470, 117917)]