20512459856

素因数分解:

$2^4\times 7^1\times {\mathrm{163}}^1\times {\mathrm{1123601}}^1$

素因数の和:1123779

約数の個数: 40

約数和(自身を含む): 45699140544

約数和(自身を除く): 25186680688

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 163, 326, 652, 1141, 1304, 2282, 2608, 4564, 9128, 18256, 1123601, 2247202, 4494404, 7865207, 8988808, 15730414, 17977616, 31460828, 62921656, 125843312, 183146963, 366293926, 732587852, 1282028741, 1465175704, 2564057482, 2930351408, 5128114964, 10256229928, 20512459856]

約数ペア:

[(1, 20512459856), (2, 10256229928), (4, 5128114964), (7, 2930351408), (8, 2564057482), (14, 1465175704), (16, 1282028741), (28, 732587852), (56, 366293926), (112, 183146963), (163, 125843312), (326, 62921656), (652, 31460828), (1141, 17977616), (1304, 15730414), (2282, 8988808), (2608, 7865207), (4564, 4494404), (9128, 2247202), (18256, 1123601)]