68987750

素因数分解:

$2^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{21227}}^1$

素因数の和:21257

約数の個数: 32

約数和(自身を含む): 139085856

約数和(自身を除く): 70098106

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 125, 130, 250, 325, 650, 1625, 3250, 21227, 42454, 106135, 212270, 275951, 530675, 551902, 1061350, 1379755, 2653375, 2759510, 5306750, 6898775, 13797550, 34493875, 68987750]

約数ペア:

[(1, 68987750), (2, 34493875), (5, 13797550), (10, 6898775), (13, 5306750), (25, 2759510), (26, 2653375), (50, 1379755), (65, 1061350), (125, 551902), (130, 530675), (250, 275951), (325, 212270), (650, 106135), (1625, 42454), (3250, 21227)]