489740015

素因数分解:

$5^1\times {\mathrm{31}}^2\times {\mathrm{227}}^1\times {\mathrm{449}}^1$

素因数の和:743

約数の個数: 24

約数和(自身を含む): 611290800

約数和(自身を除く): 121550785

約数列:

[1, 5, 31, 155, 227, 449, 961, 1135, 2245, 4805, 7037, 13919, 35185, 69595, 101923, 218147, 431489, 509615, 1090735, 2157445, 3159613, 15798065, 97948003, 489740015]

約数ペア:

[(1, 489740015), (5, 97948003), (31, 15798065), (155, 3159613), (227, 2157445), (449, 1090735), (961, 509615), (1135, 431489), (2245, 218147), (4805, 101923), (7037, 69595), (13919, 35185)]