20875120

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{37277}}^1$

素因数の和:37297

約数の個数: 40

約数和(自身を含む): 55469664

約数和(自身を除く): 34594544

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 37277, 74554, 149108, 186385, 260939, 298216, 372770, 521878, 596432, 745540, 1043756, 1304695, 1491080, 2087512, 2609390, 2982160, 4175024, 5218780, 10437560, 20875120]

約数ペア:

[(1, 20875120), (2, 10437560), (4, 5218780), (5, 4175024), (7, 2982160), (8, 2609390), (10, 2087512), (14, 1491080), (16, 1304695), (20, 1043756), (28, 745540), (35, 596432), (40, 521878), (56, 372770), (70, 298216), (80, 260939), (112, 186385), (140, 149108), (280, 74554), (560, 37277)]