489618320

素因数分解:

$2^4\times 5^1\times {\mathrm{6120229}}^1$

素因数の和:6120242

約数の個数: 20

約数和(自身を含む): 1138362780

約数和(自身を除く): 648744460

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 6120229, 12240458, 24480916, 30601145, 48961832, 61202290, 97923664, 122404580, 244809160, 489618320]

約数ペア:

[(1, 489618320), (2, 244809160), (4, 122404580), (5, 97923664), (8, 61202290), (10, 48961832), (16, 30601145), (20, 24480916), (40, 12240458), (80, 6120229)]