81421125

素因数分解:

$3^1\times 5^3\times {\mathrm{29}}^1\times {\mathrm{7487}}^1$

素因数の和:7534

約数の個数: 32

約数和(自身を含む): 140175360

約数和(自身を除く): 58754235

約数列:

[1, 3, 5, 15, 25, 29, 75, 87, 125, 145, 375, 435, 725, 2175, 3625, 7487, 10875, 22461, 37435, 112305, 187175, 217123, 561525, 651369, 935875, 1085615, 2807625, 3256845, 5428075, 16284225, 27140375, 81421125]

約数ペア:

[(1, 81421125), (3, 27140375), (5, 16284225), (15, 5428075), (25, 3256845), (29, 2807625), (75, 1085615), (87, 935875), (125, 651369), (145, 561525), (375, 217123), (435, 187175), (725, 112305), (2175, 37435), (3625, 22461), (7487, 10875)]