80987620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{578483}}^1$

素因数の和:578499

約数の個数: 24

約数和(自身を含む): 194370624

約数和(自身を除く): 113383004

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 578483, 1156966, 2313932, 2892415, 4049381, 5784830, 8098762, 11569660, 16197524, 20246905, 40493810, 80987620]

約数ペア:

[(1, 80987620), (2, 40493810), (4, 20246905), (5, 16197524), (7, 11569660), (10, 8098762), (14, 5784830), (20, 4049381), (28, 2892415), (35, 2313932), (70, 1156966), (140, 578483)]