203132920

素因数分解:

$2^3\times 5^1\times {\mathrm{499}}^1\times {\mathrm{10177}}^1$

素因数の和:10687

約数の個数: 32

約数和(自身を含む): 458010000

約数和(自身を除く): 254877080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 499, 998, 1996, 2495, 3992, 4990, 9980, 10177, 19960, 20354, 40708, 50885, 81416, 101770, 203540, 407080, 5078323, 10156646, 20313292, 25391615, 40626584, 50783230, 101566460, 203132920]

約数ペア:

[(1, 203132920), (2, 101566460), (4, 50783230), (5, 40626584), (8, 25391615), (10, 20313292), (20, 10156646), (40, 5078323), (499, 407080), (998, 203540), (1996, 101770), (2495, 81416), (3992, 50885), (4990, 40708), (9980, 20354), (10177, 19960)]