720392020

素因数分解:

$2^2\times 5^1\times {\mathrm{1487}}^1\times {\mathrm{24223}}^1$

素因数の和:25719

約数の個数: 24

約数和(自身を含む): 1513903104

約数和(自身を除く): 793511084

約数列:

[1, 2, 4, 5, 10, 20, 1487, 2974, 5948, 7435, 14870, 24223, 29740, 48446, 96892, 121115, 242230, 484460, 36019601, 72039202, 144078404, 180098005, 360196010, 720392020]

約数ペア:

[(1, 720392020), (2, 360196010), (4, 180098005), (5, 144078404), (10, 72039202), (20, 36019601), (1487, 484460), (2974, 242230), (5948, 121115), (7435, 96892), (14870, 48446), (24223, 29740)]