81072125

素因数分解:

$5^3\times {\mathrm{23}}^1\times {\mathrm{163}}^1\times {\mathrm{173}}^1$

素因数の和:374

約数の個数: 32

約数和(自身を含む): 106838784

約数和(自身を除く): 25766659

約数列:

[1, 5, 23, 25, 115, 125, 163, 173, 575, 815, 865, 2875, 3749, 3979, 4075, 4325, 18745, 19895, 20375, 21625, 28199, 93725, 99475, 140995, 468625, 497375, 648577, 704975, 3242885, 3524875, 16214425, 81072125]

約数ペア:

[(1, 81072125), (5, 16214425), (23, 3524875), (25, 3242885), (115, 704975), (125, 648577), (163, 497375), (173, 468625), (575, 140995), (815, 99475), (865, 93725), (2875, 28199), (3749, 21625), (3979, 20375), (4075, 19895), (4325, 18745)]