64615880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{230771}}^1$

素因数の和:230789

約数の個数: 32

約数和(自身を含む): 166155840

約数和(自身を除く): 101539960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 230771, 461542, 923084, 1153855, 1615397, 1846168, 2307710, 3230794, 4615420, 6461588, 8076985, 9230840, 12923176, 16153970, 32307940, 64615880]

約数ペア:

[(1, 64615880), (2, 32307940), (4, 16153970), (5, 12923176), (7, 9230840), (8, 8076985), (10, 6461588), (14, 4615420), (20, 3230794), (28, 2307710), (35, 1846168), (40, 1615397), (56, 1153855), (70, 923084), (140, 461542), (280, 230771)]