18651125

素因数分解:

$5^3\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{131}}^1$

素因数の和:230

約数の個数: 32

約数和(自身を含む): 25204608

約数和(自身を除く): 6553483

約数列:

[1, 5, 17, 25, 67, 85, 125, 131, 335, 425, 655, 1139, 1675, 2125, 2227, 3275, 5695, 8375, 8777, 11135, 16375, 28475, 43885, 55675, 142375, 149209, 219425, 278375, 746045, 1097125, 3730225, 18651125]

約数ペア:

[(1, 18651125), (5, 3730225), (17, 1097125), (25, 746045), (67, 278375), (85, 219425), (125, 149209), (131, 142375), (335, 55675), (425, 43885), (655, 28475), (1139, 16375), (1675, 11135), (2125, 8777), (2227, 8375), (3275, 5695)]