219954545

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{149}}^1\times {\mathrm{379}}^1$

素因数の和:593

約数の個数: 32

約数和(自身を含む): 287280000

約数和(自身を除く): 67325455

約数列:

[1, 5, 19, 41, 95, 149, 205, 379, 745, 779, 1895, 2831, 3895, 6109, 7201, 14155, 15539, 30545, 36005, 56471, 77695, 116071, 282355, 295241, 580355, 1072949, 1476205, 2315311, 5364745, 11576555, 43990909, 219954545]

約数ペア:

[(1, 219954545), (5, 43990909), (19, 11576555), (41, 5364745), (95, 2315311), (149, 1476205), (205, 1072949), (379, 580355), (745, 295241), (779, 282355), (1895, 116071), (2831, 77695), (3895, 56471), (6109, 36005), (7201, 30545), (14155, 15539)]