20097560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71777}}^1$

素因数の和:71795

約数の個数: 32

約数和(自身を含む): 51680160

約数和(自身を除く): 31582600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 71777, 143554, 287108, 358885, 502439, 574216, 717770, 1004878, 1435540, 2009756, 2512195, 2871080, 4019512, 5024390, 10048780, 20097560]

約数ペア:

[(1, 20097560), (2, 10048780), (4, 5024390), (5, 4019512), (7, 2871080), (8, 2512195), (10, 2009756), (14, 1435540), (20, 1004878), (28, 717770), (35, 574216), (40, 502439), (56, 358885), (70, 287108), (140, 143554), (280, 71777)]