621980

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{227}}^1$

素因数の和:373

約数の個数: 24

約数和(自身を含む): 1321488

約数和(自身を除く): 699508

約数列:

[1, 2, 4, 5, 10, 20, 137, 227, 274, 454, 548, 685, 908, 1135, 1370, 2270, 2740, 4540, 31099, 62198, 124396, 155495, 310990, 621980]

約数ペア:

[(1, 621980), (2, 310990), (4, 155495), (5, 124396), (10, 62198), (20, 31099), (137, 4540), (227, 2740), (274, 2270), (454, 1370), (548, 1135), (685, 908)]