636585020

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{521791}}^1$

素因数の和:521861

約数の個数: 24

約数和(自身を含む): 1358746368

約数和(自身を除く): 722161348

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 521791, 1043582, 2087164, 2608955, 5217910, 10435820, 31829251, 63658502, 127317004, 159146255, 318292510, 636585020]

約数ペア:

[(1, 636585020), (2, 318292510), (4, 159146255), (5, 127317004), (10, 63658502), (20, 31829251), (61, 10435820), (122, 5217910), (244, 2608955), (305, 2087164), (610, 1043582), (1220, 521791)]