12643075

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{619}}^1$

素因数の和:691

約数の個数: 24

約数和(自身を含む): 16913600

約数和(自身を除く): 4270525

約数列:

[1, 5, 19, 25, 43, 95, 215, 475, 619, 817, 1075, 3095, 4085, 11761, 15475, 20425, 26617, 58805, 133085, 294025, 505723, 665425, 2528615, 12643075]

約数ペア:

[(1, 12643075), (5, 2528615), (19, 665425), (25, 505723), (43, 294025), (95, 133085), (215, 58805), (475, 26617), (619, 20425), (817, 15475), (1075, 11761), (3095, 4085)]