51120875

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{193}}^1$

素因数の和:384

約数の個数: 32

約数和(自身を含む): 69486144

約数和(自身を除く): 18365269

約数列:

[1, 5, 13, 25, 65, 125, 163, 193, 325, 815, 965, 1625, 2119, 2509, 4075, 4825, 10595, 12545, 20375, 24125, 31459, 52975, 62725, 157295, 264875, 313625, 408967, 786475, 2044835, 3932375, 10224175, 51120875]

約数ペア:

[(1, 51120875), (5, 10224175), (13, 3932375), (25, 2044835), (65, 786475), (125, 408967), (163, 313625), (193, 264875), (325, 157295), (815, 62725), (965, 52975), (1625, 31459), (2119, 24125), (2509, 20375), (4075, 12545), (4825, 10595)]