81888575

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{10141}}^1$

素因数の和:10187

約数の個数: 24

約数和(自身を含む): 113184720

約数和(自身を除く): 31296145

約数列:

[1, 5, 17, 19, 25, 85, 95, 323, 425, 475, 1615, 8075, 10141, 50705, 172397, 192679, 253525, 861985, 963395, 3275543, 4309925, 4816975, 16377715, 81888575]

約数ペア:

[(1, 81888575), (5, 16377715), (17, 4816975), (19, 4309925), (25, 3275543), (85, 963395), (95, 861985), (323, 253525), (425, 192679), (475, 172397), (1615, 50705), (8075, 10141)]