31276774

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1\times {\mathrm{131}}^1$

素因数の和:316

約数の個数: 32

約数和(自身を含む): 51068160

約数和(自身を除く): 19791386

約数列:

[1, 2, 19, 38, 61, 103, 122, 131, 206, 262, 1159, 1957, 2318, 2489, 3914, 4978, 6283, 7991, 12566, 13493, 15982, 26986, 119377, 151829, 238754, 256367, 303658, 512734, 823073, 1646146, 15638387, 31276774]

約数ペア:

[(1, 31276774), (2, 15638387), (19, 1646146), (38, 823073), (61, 512734), (103, 303658), (122, 256367), (131, 238754), (206, 151829), (262, 119377), (1159, 26986), (1957, 15982), (2318, 13493), (2489, 12566), (3914, 7991), (4978, 6283)]