20115125

素因数分解:

$5^3\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{179}}^1$

素因数の和:254

約数の個数: 32

約数和(自身を含む): 26956800

約数和(自身を除く): 6841675

約数列:

[1, 5, 25, 29, 31, 125, 145, 155, 179, 725, 775, 895, 899, 3625, 3875, 4475, 4495, 5191, 5549, 22375, 22475, 25955, 27745, 112375, 129775, 138725, 160921, 648875, 693625, 804605, 4023025, 20115125]

約数ペア:

[(1, 20115125), (5, 4023025), (25, 804605), (29, 693625), (31, 648875), (125, 160921), (145, 138725), (155, 129775), (179, 112375), (725, 27745), (775, 25955), (895, 22475), (899, 22375), (3625, 5549), (3875, 5191), (4475, 4495)]