20442808

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{163}}^1\times {\mathrm{257}}^1$

素因数の和:487

約数の個数: 32

約数和(自身を含む): 39350160

約数和(自身を除く): 18907352

約数列:

[1, 2, 4, 8, 61, 122, 163, 244, 257, 326, 488, 514, 652, 1028, 1304, 2056, 9943, 15677, 19886, 31354, 39772, 41891, 62708, 79544, 83782, 125416, 167564, 335128, 2555351, 5110702, 10221404, 20442808]

約数ペア:

[(1, 20442808), (2, 10221404), (4, 5110702), (8, 2555351), (61, 335128), (122, 167564), (163, 125416), (244, 83782), (257, 79544), (326, 62708), (488, 41891), (514, 39772), (652, 31354), (1028, 19886), (1304, 15677), (2056, 9943)]