289010725

素因数分解:

$5^2\times {\mathrm{127}}^1\times {\mathrm{227}}^1\times {\mathrm{401}}^1$

素因数の和:765

約数の個数: 24

約数和(自身を含む): 363691008

約数和(自身を除く): 74680283

約数列:

[1, 5, 25, 127, 227, 401, 635, 1135, 2005, 3175, 5675, 10025, 28829, 50927, 91027, 144145, 254635, 455135, 720725, 1273175, 2275675, 11560429, 57802145, 289010725]

約数ペア:

[(1, 289010725), (5, 57802145), (25, 11560429), (127, 2275675), (227, 1273175), (401, 720725), (635, 455135), (1135, 254635), (2005, 144145), (3175, 91027), (5675, 50927), (10025, 28829)]