68885875

素因数分解:

$5^3\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{613}}^1$

素因数の和:688

約数の個数: 32

約数和(自身を含む): 91952640

約数和(自身を除く): 23066765

約数列:

[1, 5, 25, 29, 31, 125, 145, 155, 613, 725, 775, 899, 3065, 3625, 3875, 4495, 15325, 17777, 19003, 22475, 76625, 88885, 95015, 112375, 444425, 475075, 551087, 2222125, 2375375, 2755435, 13777175, 68885875]

約数ペア:

[(1, 68885875), (5, 13777175), (25, 2755435), (29, 2375375), (31, 2222125), (125, 551087), (145, 475075), (155, 444425), (613, 112375), (725, 95015), (775, 88885), (899, 76625), (3065, 22475), (3625, 19003), (3875, 17777), (4495, 15325)]