79740025

素因数分解:

$5^2\times {\mathrm{103}}^1\times {\mathrm{173}}^1\times {\mathrm{179}}^1$

素因数の和:465

約数の個数: 24

約数和(自身を含む): 100975680

約数和(自身を除く): 21235655

約数列:

[1, 5, 25, 103, 173, 179, 515, 865, 895, 2575, 4325, 4475, 17819, 18437, 30967, 89095, 92185, 154835, 445475, 460925, 774175, 3189601, 15948005, 79740025]

約数ペア:

[(1, 79740025), (5, 15948005), (25, 3189601), (103, 774175), (173, 460925), (179, 445475), (515, 154835), (865, 92185), (895, 89095), (2575, 30967), (4325, 18437), (4475, 17819)]