8641990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{123457}}^1$

素因数の和:123471

約数の個数: 16

約数和(自身を含む): 17777952

約数和(自身を除く): 9135962

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 123457, 246914, 617285, 864199, 1234570, 1728398, 4320995, 8641990]

約数ペア:

[(1, 8641990), (2, 4320995), (5, 1728398), (7, 1234570), (10, 864199), (14, 617285), (35, 246914), (70, 123457)]