16642555

素因数分解:

$5^1\times {\mathrm{89}}^1\times {\mathrm{149}}^1\times {\mathrm{251}}^1$

素因数の和:494

約数の個数: 16

約数和(自身を含む): 20412000

約数和(自身を除く): 3769445

約数列:

[1, 5, 89, 149, 251, 445, 745, 1255, 13261, 22339, 37399, 66305, 111695, 186995, 3328511, 16642555]

約数ペア:

[(1, 16642555), (5, 3328511), (89, 186995), (149, 111695), (251, 66305), (445, 37399), (745, 22339), (1255, 13261)]