80772980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{130279}}^1$

素因数の和:130319

約数の個数: 24

約数和(自身を含む): 175096320

約数和(自身を除く): 94323340

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 130279, 260558, 521116, 651395, 1302790, 2605580, 4038649, 8077298, 16154596, 20193245, 40386490, 80772980]

約数ペア:

[(1, 80772980), (2, 40386490), (4, 20193245), (5, 16154596), (10, 8077298), (20, 4038649), (31, 2605580), (62, 1302790), (124, 651395), (155, 521116), (310, 260558), (620, 130279)]