64540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{461}}^1$

素因数の和:477

約数の個数: 24

約数和(自身を含む): 155232

約数和(自身を除く): 90692

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 461, 922, 1844, 2305, 3227, 4610, 6454, 9220, 12908, 16135, 32270, 64540]

約数ペア:

[(1, 64540), (2, 32270), (4, 16135), (5, 12908), (7, 9220), (10, 6454), (14, 4610), (20, 3227), (28, 2305), (35, 1844), (70, 922), (140, 461)]