20165925080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{72021161}}^1$

素因数の和:72021179

約数の個数: 32

約数和(自身を含む): 51855236640

約数和(自身を除く): 31689311560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 72021161, 144042322, 288084644, 360105805, 504148127, 576169288, 720211610, 1008296254, 1440423220, 2016592508, 2520740635, 2880846440, 4033185016, 5041481270, 10082962540, 20165925080]

約数ペア:

[(1, 20165925080), (2, 10082962540), (4, 5041481270), (5, 4033185016), (7, 2880846440), (8, 2520740635), (10, 2016592508), (14, 1440423220), (20, 1008296254), (28, 720211610), (35, 576169288), (40, 504148127), (56, 360105805), (70, 288084644), (140, 144042322), (280, 72021161)]