20185275

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{569}}^1$

素因数の和:636

約数の個数: 48

約数和(自身を含む): 37319040

約数和(自身を除く): 17133765

約数列:

[1, 3, 5, 11, 15, 25, 33, 43, 55, 75, 129, 165, 215, 275, 473, 569, 645, 825, 1075, 1419, 1707, 2365, 2845, 3225, 6259, 7095, 8535, 11825, 14225, 18777, 24467, 31295, 35475, 42675, 73401, 93885, 122335, 156475, 269137, 367005, 469425, 611675, 807411, 1345685, 1835025, 4037055, 6728425, 20185275]

約数ペア:

[(1, 20185275), (3, 6728425), (5, 4037055), (11, 1835025), (15, 1345685), (25, 807411), (33, 611675), (43, 469425), (55, 367005), (75, 269137), (129, 156475), (165, 122335), (215, 93885), (275, 73401), (473, 42675), (569, 35475), (645, 31295), (825, 24467), (1075, 18777), (1419, 14225), (1707, 11825), (2365, 8535), (2845, 7095), (3225, 6259)]