18742100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^2\times {\mathrm{1109}}^1$

素因数の和:1149

約数の個数: 54

約数和(自身を含む): 44079210

約数和(自身を除く): 25337110

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 169, 260, 325, 338, 650, 676, 845, 1109, 1300, 1690, 2218, 3380, 4225, 4436, 5545, 8450, 11090, 14417, 16900, 22180, 27725, 28834, 55450, 57668, 72085, 110900, 144170, 187421, 288340, 360425, 374842, 720850, 749684, 937105, 1441700, 1874210, 3748420, 4685525, 9371050, 18742100]

約数ペア:

[(1, 18742100), (2, 9371050), (4, 4685525), (5, 3748420), (10, 1874210), (13, 1441700), (20, 937105), (25, 749684), (26, 720850), (50, 374842), (52, 360425), (65, 288340), (100, 187421), (130, 144170), (169, 110900), (260, 72085), (325, 57668), (338, 55450), (650, 28834), (676, 27725), (845, 22180), (1109, 16900), (1300, 14417), (1690, 11090), (2218, 8450), (3380, 5545), (4225, 4436)]