64975540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{487}}^1\times {\mathrm{953}}^1$

素因数の和:1456

約数の個数: 48

約数和(自身を含む): 156425472

約数和(自身を除く): 91449932

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 487, 953, 974, 1906, 1948, 2435, 3409, 3812, 4765, 4870, 6671, 6818, 9530, 9740, 13342, 13636, 17045, 19060, 26684, 33355, 34090, 66710, 68180, 133420, 464111, 928222, 1856444, 2320555, 3248777, 4641110, 6497554, 9282220, 12995108, 16243885, 32487770, 64975540]

約数ペア:

[(1, 64975540), (2, 32487770), (4, 16243885), (5, 12995108), (7, 9282220), (10, 6497554), (14, 4641110), (20, 3248777), (28, 2320555), (35, 1856444), (70, 928222), (140, 464111), (487, 133420), (953, 68180), (974, 66710), (1906, 34090), (1948, 33355), (2435, 26684), (3409, 19060), (3812, 17045), (4765, 13636), (4870, 13342), (6671, 9740), (6818, 9530)]