16398320

素因数分解:

$2^4\times 5^1\times {\mathrm{204979}}^1$

素因数の和:204992

約数の個数: 20

約数和(自身を含む): 38126280

約数和(自身を除く): 21727960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 204979, 409958, 819916, 1024895, 1639832, 2049790, 3279664, 4099580, 8199160, 16398320]

約数ペア:

[(1, 16398320), (2, 8199160), (4, 4099580), (5, 3279664), (8, 2049790), (10, 1639832), (16, 1024895), (20, 819916), (40, 409958), (80, 204979)]