128568640

素因数分解:

$2^6\times 5^1\times {\mathrm{131}}^1\times {\mathrm{3067}}^1$

素因数の和:3215

約数の個数: 56

約数和(自身を含む): 308591712

約数和(自身を除く): 180023072

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 131, 160, 262, 320, 524, 655, 1048, 1310, 2096, 2620, 3067, 4192, 5240, 6134, 8384, 10480, 12268, 15335, 20960, 24536, 30670, 41920, 49072, 61340, 98144, 122680, 196288, 245360, 401777, 490720, 803554, 981440, 1607108, 2008885, 3214216, 4017770, 6428432, 8035540, 12856864, 16071080, 25713728, 32142160, 64284320, 128568640]

約数ペア:

[(1, 128568640), (2, 64284320), (4, 32142160), (5, 25713728), (8, 16071080), (10, 12856864), (16, 8035540), (20, 6428432), (32, 4017770), (40, 3214216), (64, 2008885), (80, 1607108), (131, 981440), (160, 803554), (262, 490720), (320, 401777), (524, 245360), (655, 196288), (1048, 122680), (1310, 98144), (2096, 61340), (2620, 49072), (3067, 41920), (4192, 30670), (5240, 24536), (6134, 20960), (8384, 15335), (10480, 12268)]