255137905

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1\times {\mathrm{991}}^1$

素因数の和:1189

約数の個数: 32

約数和(自身を含む): 347406336

約数和(自身を除く): 92268431

約数列:

[1, 5, 11, 31, 55, 151, 155, 341, 755, 991, 1661, 1705, 4681, 4955, 8305, 10901, 23405, 30721, 51491, 54505, 149641, 153605, 257455, 337931, 748205, 1646051, 1689655, 4638871, 8230255, 23194355, 51027581, 255137905]

約数ペア:

[(1, 255137905), (5, 51027581), (11, 23194355), (31, 8230255), (55, 4638871), (151, 1689655), (155, 1646051), (341, 748205), (755, 337931), (991, 257455), (1661, 153605), (1705, 149641), (4681, 54505), (4955, 51491), (8305, 30721), (10901, 23405)]