320199160

素因数分解:

$2^3\times 5^1\times {\mathrm{8004979}}^1$

素因数の和:8004990

約数の個数: 16

約数和(自身を含む): 720448200

約数和(自身を除く): 400249040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 8004979, 16009958, 32019916, 40024895, 64039832, 80049790, 160099580, 320199160]

約数ペア:

[(1, 320199160), (2, 160099580), (4, 80049790), (5, 64039832), (8, 40024895), (10, 32019916), (20, 16009958), (40, 8004979)]