18402875

素因数分解:

$5^3\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{173}}^1$

素因数の和:248

約数の個数: 32

約数和(自身を含む): 24755328

約数和(自身を除く): 6352453

約数列:

[1, 5, 23, 25, 37, 115, 125, 173, 185, 575, 851, 865, 925, 2875, 3979, 4255, 4325, 4625, 6401, 19895, 21275, 21625, 32005, 99475, 106375, 147223, 160025, 497375, 736115, 800125, 3680575, 18402875]

約数ペア:

[(1, 18402875), (5, 3680575), (23, 800125), (25, 736115), (37, 497375), (115, 160025), (125, 147223), (173, 106375), (185, 99475), (575, 32005), (851, 21625), (865, 21275), (925, 19895), (2875, 6401), (3979, 4625), (4255, 4325)]