64891988

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{53897}}^1$

素因数の和:53951

約数の個数: 24

約数和(自身を含む): 132804672

約数和(自身を除く): 67912684

約数列:

[1, 2, 4, 7, 14, 28, 43, 86, 172, 301, 602, 1204, 53897, 107794, 215588, 377279, 754558, 1509116, 2317571, 4635142, 9270284, 16222997, 32445994, 64891988]

約数ペア:

[(1, 64891988), (2, 32445994), (4, 16222997), (7, 9270284), (14, 4635142), (28, 2317571), (43, 1509116), (86, 754558), (172, 377279), (301, 215588), (602, 107794), (1204, 53897)]