18162125

素因数分解:

$5^3\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1$

素因数の和:198

約数の個数: 32

約数和(自身を含む): 24161280

約数和(自身を除く): 5999155

約数列:

[1, 5, 25, 31, 43, 109, 125, 155, 215, 545, 775, 1075, 1333, 2725, 3379, 3875, 4687, 5375, 6665, 13625, 16895, 23435, 33325, 84475, 117175, 145297, 166625, 422375, 585875, 726485, 3632425, 18162125]

約数ペア:

[(1, 18162125), (5, 3632425), (25, 726485), (31, 585875), (43, 422375), (109, 166625), (125, 145297), (155, 117175), (215, 84475), (545, 33325), (775, 23435), (1075, 16895), (1333, 13625), (2725, 6665), (3379, 5375), (3875, 4687)]