388538315

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{21871}}^1$

素因数の和:21923

約数の個数: 32

約数和(自身を含む): 566922240

約数和(自身を除く): 178383925

約数列:

[1, 5, 11, 17, 19, 55, 85, 95, 187, 209, 323, 935, 1045, 1615, 3553, 17765, 21871, 109355, 240581, 371807, 415549, 1202905, 1859035, 2077745, 4089877, 4571039, 7064333, 20449385, 22855195, 35321665, 77707663, 388538315]

約数ペア:

[(1, 388538315), (5, 77707663), (11, 35321665), (17, 22855195), (19, 20449385), (55, 7064333), (85, 4571039), (95, 4089877), (187, 2077745), (209, 1859035), (323, 1202905), (935, 415549), (1045, 371807), (1615, 240581), (3553, 109355), (17765, 21871)]