61778320

素因数分解:

$2^4\times 5^1\times {\mathrm{772229}}^1$

素因数の和:772242

約数の個数: 20

約数和(自身を含む): 143634780

約数和(自身を除く): 81856460

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 772229, 1544458, 3088916, 3861145, 6177832, 7722290, 12355664, 15444580, 30889160, 61778320]

約数ペア:

[(1, 61778320), (2, 30889160), (4, 15444580), (5, 12355664), (8, 7722290), (10, 6177832), (16, 3861145), (20, 3088916), (40, 1544458), (80, 772229)]