28658320

素因数分解:

$2^4\times 5^1\times {\mathrm{358229}}^1$

素因数の和:358242

約数の個数: 20

約数和(自身を含む): 66630780

約数和(自身を除く): 37972460

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 358229, 716458, 1432916, 1791145, 2865832, 3582290, 5731664, 7164580, 14329160, 28658320]

約数ペア:

[(1, 28658320), (2, 14329160), (4, 7164580), (5, 5731664), (8, 3582290), (10, 2865832), (16, 1791145), (20, 1432916), (40, 716458), (80, 358229)]