20113125

素因数分解:

$3^1\times 5^4\times {\mathrm{17}}^1\times {\mathrm{631}}^1$

素因数の和:671

約数の個数: 40

約数和(自身を含む): 35538624

約数和(自身を除く): 15425499

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 125, 255, 375, 425, 625, 631, 1275, 1875, 1893, 2125, 3155, 6375, 9465, 10625, 10727, 15775, 31875, 32181, 47325, 53635, 78875, 160905, 236625, 268175, 394375, 804525, 1183125, 1340875, 4022625, 6704375, 20113125]

約数ペア:

[(1, 20113125), (3, 6704375), (5, 4022625), (15, 1340875), (17, 1183125), (25, 804525), (51, 394375), (75, 268175), (85, 236625), (125, 160905), (255, 78875), (375, 53635), (425, 47325), (625, 32181), (631, 31875), (1275, 15775), (1875, 10727), (1893, 10625), (2125, 9465), (3155, 6375)]