2555380720

素因数分解:

$2^4\times 5^1\times {\mathrm{31942259}}^1$

素因数の和:31942272

約数の個数: 20

約数和(自身を含む): 5941260360

約数和(自身を除く): 3385879640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 31942259, 63884518, 127769036, 159711295, 255538072, 319422590, 511076144, 638845180, 1277690360, 2555380720]

約数ペア:

[(1, 2555380720), (2, 1277690360), (4, 638845180), (5, 511076144), (8, 319422590), (10, 255538072), (16, 159711295), (20, 127769036), (40, 63884518), (80, 31942259)]