257420518

素因数分解:

$2^1\times {\mathrm{101}}^1\times {\mathrm{857}}^1\times {\mathrm{1487}}^1$

素因数の和:2447

約数の個数: 16

約数和(自身を含む): 390671424

約数和(自身を除く): 133250906

約数列:

[1, 2, 101, 202, 857, 1487, 1714, 2974, 86557, 150187, 173114, 300374, 1274359, 2548718, 128710259, 257420518]

約数ペア:

[(1, 257420518), (2, 128710259), (101, 2548718), (202, 1274359), (857, 300374), (1487, 173114), (1714, 150187), (2974, 86557)]