256609535

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29683}}^1$

素因数の和:29727

約数の個数: 32

約数和(自身を含む): 398952960

約数和(自身を除く): 142343425

約数列:

[1, 5, 7, 13, 19, 35, 65, 91, 95, 133, 247, 455, 665, 1235, 1729, 8645, 29683, 148415, 207781, 385879, 563977, 1038905, 1929395, 2701153, 2819885, 3947839, 7331701, 13505765, 19739195, 36658505, 51321907, 256609535]

約数ペア:

[(1, 256609535), (5, 51321907), (7, 36658505), (13, 19739195), (19, 13505765), (35, 7331701), (65, 3947839), (91, 2819885), (95, 2701153), (133, 1929395), (247, 1038905), (455, 563977), (665, 385879), (1235, 207781), (1729, 148415), (8645, 29683)]