68699240

素因数分解:

$2^3\times 5^1\times {\mathrm{419}}^1\times {\mathrm{4099}}^1$

素因数の和:4529

約数の個数: 32

約数和(自身を含む): 154980000

約数和(自身を除く): 86280760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 419, 838, 1676, 2095, 3352, 4099, 4190, 8198, 8380, 16396, 16760, 20495, 32792, 40990, 81980, 163960, 1717481, 3434962, 6869924, 8587405, 13739848, 17174810, 34349620, 68699240]

約数ペア:

[(1, 68699240), (2, 34349620), (4, 17174810), (5, 13739848), (8, 8587405), (10, 6869924), (20, 3434962), (40, 1717481), (419, 163960), (838, 81980), (1676, 40990), (2095, 32792), (3352, 20495), (4099, 16760), (4190, 16396), (8198, 8380)]