217471055

素因数分解:

$5^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{89}}^2$

素因数の和:236

約数の個数: 36

約数和(自身を含む): 295125240

約数和(自身を除く): 77654185

約数列:

[1, 5, 17, 19, 85, 89, 95, 289, 323, 445, 1445, 1513, 1615, 1691, 5491, 7565, 7921, 8455, 25721, 27455, 28747, 39605, 128605, 134657, 143735, 150499, 488699, 673285, 752495, 2289169, 2443495, 2558483, 11445845, 12792415, 43494211, 217471055]

約数ペア:

[(1, 217471055), (5, 43494211), (17, 12792415), (19, 11445845), (85, 2558483), (89, 2443495), (95, 2289169), (289, 752495), (323, 673285), (445, 488699), (1445, 150499), (1513, 143735), (1615, 134657), (1691, 128605), (5491, 39605), (7565, 28747), (7921, 27455), (8455, 25721)]