66981745

素因数分解:

$5^1\times {\mathrm{19}}^2\times {\mathrm{43}}^1\times {\mathrm{863}}^1$

素因数の和:949

約数の個数: 24

約数和(自身を含む): 86904576

約数和(自身を除く): 19922831

約数列:

[1, 5, 19, 43, 95, 215, 361, 817, 863, 1805, 4085, 4315, 15523, 16397, 37109, 77615, 81985, 185545, 311543, 705071, 1557715, 3525355, 13396349, 66981745]

約数ペア:

[(1, 66981745), (5, 13396349), (19, 3525355), (43, 1557715), (95, 705071), (215, 311543), (361, 185545), (817, 81985), (863, 77615), (1805, 37109), (4085, 16397), (4315, 15523)]