30981245

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{1979}}^1$

素因数の和:2116

約数の個数: 16

約数和(自身を含む): 38776320

約数和(自身を除く): 7795075

約数列:

[1, 5, 31, 101, 155, 505, 1979, 3131, 9895, 15655, 61349, 199879, 306745, 999395, 6196249, 30981245]

約数ペア:

[(1, 30981245), (5, 6196249), (31, 999395), (101, 306745), (155, 199879), (505, 61349), (1979, 15655), (3131, 9895)]