48980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:119

約数の個数: 24

約数和(自身を含む): 107520

約数和(自身を除く): 58540

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 79, 124, 155, 158, 310, 316, 395, 620, 790, 1580, 2449, 4898, 9796, 12245, 24490, 48980]

約数ペア:

[(1, 48980), (2, 24490), (4, 12245), (5, 9796), (10, 4898), (20, 2449), (31, 1580), (62, 790), (79, 620), (124, 395), (155, 316), (158, 310)]