12840825

素因数分解:

$3^1\times 5^2\times {\mathrm{313}}^1\times {\mathrm{547}}^1$

素因数の和:873

約数の個数: 24

約数和(自身を含む): 21336928

約数和(自身を除く): 8496103

約数列:

[1, 3, 5, 15, 25, 75, 313, 547, 939, 1565, 1641, 2735, 4695, 7825, 8205, 13675, 23475, 41025, 171211, 513633, 856055, 2568165, 4280275, 12840825]

約数ペア:

[(1, 12840825), (3, 4280275), (5, 2568165), (15, 856055), (25, 513633), (75, 171211), (313, 41025), (547, 23475), (939, 13675), (1565, 8205), (1641, 7825), (2735, 4695)]