28448440

素因数分解:

$2^3\times 5^1\times {\mathrm{281}}^1\times {\mathrm{2531}}^1$

素因数の和:2823

約数の個数: 32

約数和(自身を含む): 64262160

約数和(自身を除く): 35813720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 281, 562, 1124, 1405, 2248, 2531, 2810, 5062, 5620, 10124, 11240, 12655, 20248, 25310, 50620, 101240, 711211, 1422422, 2844844, 3556055, 5689688, 7112110, 14224220, 28448440]

約数ペア:

[(1, 28448440), (2, 14224220), (4, 7112110), (5, 5689688), (8, 3556055), (10, 2844844), (20, 1422422), (40, 711211), (281, 101240), (562, 50620), (1124, 25310), (1405, 20248), (2248, 12655), (2531, 11240), (2810, 10124), (5062, 5620)]