64646180

素因数分解:

$2^2\times 5^1\times {\mathrm{211}}^1\times {\mathrm{15319}}^1$

素因数の和:15539

約数の個数: 24

約数和(自身を含む): 136409280

約数和(自身を除く): 71763100

約数列:

[1, 2, 4, 5, 10, 20, 211, 422, 844, 1055, 2110, 4220, 15319, 30638, 61276, 76595, 153190, 306380, 3232309, 6464618, 12929236, 16161545, 32323090, 64646180]

約数ペア:

[(1, 64646180), (2, 32323090), (4, 16161545), (5, 12929236), (10, 6464618), (20, 3232309), (211, 306380), (422, 153190), (844, 76595), (1055, 61276), (2110, 30638), (4220, 15319)]