28107880

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{14951}}^1$

素因数の和:15009

約数の個数: 32

約数和(自身を含む): 64592640

約数和(自身を除く): 36484760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 14951, 29902, 59804, 74755, 119608, 149510, 299020, 598040, 702697, 1405394, 2810788, 3513485, 5621576, 7026970, 14053940, 28107880]

約数ペア:

[(1, 28107880), (2, 14053940), (4, 7026970), (5, 5621576), (8, 3513485), (10, 2810788), (20, 1405394), (40, 702697), (47, 598040), (94, 299020), (188, 149510), (235, 119608), (376, 74755), (470, 59804), (940, 29902), (1880, 14951)]