66989605

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{25423}}^1$

素因数の和:25476

約数の個数: 16

約数和(自身を含む): 87865344

約数和(自身を除く): 20875739

約数列:

[1, 5, 17, 31, 85, 155, 527, 2635, 25423, 127115, 432191, 788113, 2160955, 3940565, 13397921, 66989605]

約数ペア:

[(1, 66989605), (5, 13397921), (17, 3940565), (31, 2160955), (85, 788113), (155, 432191), (527, 127115), (2635, 25423)]