68639896

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{659999}}^1$

素因数の和:660018

約数の個数: 16

約数和(自身を含む): 138600000

約数和(自身を除く): 69960104

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 659999, 1319998, 2639996, 5279992, 8579987, 17159974, 34319948, 68639896]

約数ペア:

[(1, 68639896), (2, 34319948), (4, 17159974), (8, 8579987), (13, 5279992), (26, 2639996), (52, 1319998), (104, 659999)]