257017285

素因数分解:

$5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{181}}^1\times {\mathrm{1399}}^1$

素因数の和:1621

約数の個数: 32

約数和(自身を含む): 366912000

約数和(自身を除く): 109894715

約数列:

[1, 5, 7, 29, 35, 145, 181, 203, 905, 1015, 1267, 1399, 5249, 6335, 6995, 9793, 26245, 36743, 40571, 48965, 183715, 202855, 253219, 283997, 1266095, 1419985, 1772533, 7343351, 8862665, 36716755, 51403457, 257017285]

約数ペア:

[(1, 257017285), (5, 51403457), (7, 36716755), (29, 8862665), (35, 7343351), (145, 1772533), (181, 1419985), (203, 1266095), (905, 283997), (1015, 253219), (1267, 202855), (1399, 183715), (5249, 48965), (6335, 40571), (6995, 36743), (9793, 26245)]