20445780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{149}}^1\times {\mathrm{2287}}^1$

素因数の和:2448

約数の個数: 48

約数和(自身を含む): 57657600

約数和(自身を除く): 37211820

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 149, 298, 447, 596, 745, 894, 1490, 1788, 2235, 2287, 2980, 4470, 4574, 6861, 8940, 9148, 11435, 13722, 22870, 27444, 34305, 45740, 68610, 137220, 340763, 681526, 1022289, 1363052, 1703815, 2044578, 3407630, 4089156, 5111445, 6815260, 10222890, 20445780]

約数ペア:

[(1, 20445780), (2, 10222890), (3, 6815260), (4, 5111445), (5, 4089156), (6, 3407630), (10, 2044578), (12, 1703815), (15, 1363052), (20, 1022289), (30, 681526), (60, 340763), (149, 137220), (298, 68610), (447, 45740), (596, 34305), (745, 27444), (894, 22870), (1490, 13722), (1788, 11435), (2235, 9148), (2287, 8940), (2980, 6861), (4470, 4574)]