28577620

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{13109}}^1$

素因数の和:13227

約数の個数: 24

約数和(自身を含む): 60568200

約数和(自身を除く): 31990580

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 13109, 26218, 52436, 65545, 131090, 262180, 1428881, 2857762, 5715524, 7144405, 14288810, 28577620]

約数ペア:

[(1, 28577620), (2, 14288810), (4, 7144405), (5, 5715524), (10, 2857762), (20, 1428881), (109, 262180), (218, 131090), (436, 65545), (545, 52436), (1090, 26218), (2180, 13109)]