20620325

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{167}}^1\times {\mathrm{449}}^1$

素因数の和:637

約数の個数: 24

約数和(自身を含む): 28123200

約数和(自身を除く): 7502875

約数列:

[1, 5, 11, 25, 55, 167, 275, 449, 835, 1837, 2245, 4175, 4939, 9185, 11225, 24695, 45925, 74983, 123475, 374915, 824813, 1874575, 4124065, 20620325]

約数ペア:

[(1, 20620325), (5, 4124065), (11, 1874575), (25, 824813), (55, 374915), (167, 123475), (275, 74983), (449, 45925), (835, 24695), (1837, 11225), (2245, 9185), (4175, 4939)]