28782620

素因数分解:

$2^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{7951}}^1$

素因数の和:8141

約数の個数: 24

約数和(自身を含む): 60785088

約数和(自身を除く): 32002468

約数列:

[1, 2, 4, 5, 10, 20, 181, 362, 724, 905, 1810, 3620, 7951, 15902, 31804, 39755, 79510, 159020, 1439131, 2878262, 5756524, 7195655, 14391310, 28782620]

約数ペア:

[(1, 28782620), (2, 14391310), (4, 7195655), (5, 5756524), (10, 2878262), (20, 1439131), (181, 159020), (362, 79510), (724, 39755), (905, 31804), (1810, 15902), (3620, 7951)]