68703980

素因数分解:

$2^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{18979}}^1$

素因数の和:19169

約数の個数: 24

約数和(自身を含む): 145083120

約数和(自身を除く): 76379140

約数列:

[1, 2, 4, 5, 10, 20, 181, 362, 724, 905, 1810, 3620, 18979, 37958, 75916, 94895, 189790, 379580, 3435199, 6870398, 13740796, 17175995, 34351990, 68703980]

約数ペア:

[(1, 68703980), (2, 34351990), (4, 17175995), (5, 13740796), (10, 6870398), (20, 3435199), (181, 379580), (362, 189790), (724, 94895), (905, 75916), (1810, 37958), (3620, 18979)]