68716975

素因数分解:

$5^2\times {\mathrm{17}}^2\times {\mathrm{9511}}^1$

素因数の和:9555

約数の個数: 18

約数和(自身を含む): 90525704

約数和(自身を除く): 21808729

約数列:

[1, 5, 17, 25, 85, 289, 425, 1445, 7225, 9511, 47555, 161687, 237775, 808435, 2748679, 4042175, 13743395, 68716975]

約数ペア:

[(1, 68716975), (5, 13743395), (17, 4042175), (25, 2748679), (85, 808435), (289, 237775), (425, 161687), (1445, 47555), (7225, 9511)]