64487480

素因数分解:

$2^3\times 5^1\times {\mathrm{173}}^1\times {\mathrm{9319}}^1$

素因数の和:9503

約数の個数: 32

約数和(自身を含む): 145951200

約数和(自身を除く): 81463720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 173, 346, 692, 865, 1384, 1730, 3460, 6920, 9319, 18638, 37276, 46595, 74552, 93190, 186380, 372760, 1612187, 3224374, 6448748, 8060935, 12897496, 16121870, 32243740, 64487480]

約数ペア:

[(1, 64487480), (2, 32243740), (4, 16121870), (5, 12897496), (8, 8060935), (10, 6448748), (20, 3224374), (40, 1612187), (173, 372760), (346, 186380), (692, 93190), (865, 74552), (1384, 46595), (1730, 37276), (3460, 18638), (6920, 9319)]