138840575

素因数分解:

$5^2\times {\mathrm{61}}^1\times {\mathrm{181}}^1\times {\mathrm{503}}^1$

素因数の和:755

約数の個数: 24

約数和(自身を含む): 176301216

約数和(自身を除く): 37460641

約数列:

[1, 5, 25, 61, 181, 305, 503, 905, 1525, 2515, 4525, 11041, 12575, 30683, 55205, 91043, 153415, 276025, 455215, 767075, 2276075, 5553623, 27768115, 138840575]

約数ペア:

[(1, 138840575), (5, 27768115), (25, 5553623), (61, 2276075), (181, 767075), (305, 455215), (503, 276025), (905, 153415), (1525, 91043), (2515, 55205), (4525, 30683), (11041, 12575)]