127705040

素因数分解:

$2^4\times 5^1\times {\mathrm{1596313}}^1$

素因数の和:1596326

約数の個数: 20

約数和(自身を含む): 296914404

約数和(自身を除く): 169209364

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1596313, 3192626, 6385252, 7981565, 12770504, 15963130, 25541008, 31926260, 63852520, 127705040]

約数ペア:

[(1, 127705040), (2, 63852520), (4, 31926260), (5, 25541008), (8, 15963130), (10, 12770504), (16, 7981565), (20, 6385252), (40, 3192626), (80, 1596313)]