20074808

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^2$

素因数の和:196

約数の個数: 48

約数和(自身を含む): 42106680

約数和(自身を除く): 22031872

約数列:

[1, 2, 4, 8, 13, 26, 43, 52, 67, 86, 104, 134, 172, 268, 344, 536, 559, 871, 1118, 1742, 2236, 2881, 3484, 4472, 4489, 5762, 6968, 8978, 11524, 17956, 23048, 35912, 37453, 58357, 74906, 116714, 149812, 193027, 233428, 299624, 386054, 466856, 772108, 1544216, 2509351, 5018702, 10037404, 20074808]

約数ペア:

[(1, 20074808), (2, 10037404), (4, 5018702), (8, 2509351), (13, 1544216), (26, 772108), (43, 466856), (52, 386054), (67, 299624), (86, 233428), (104, 193027), (134, 149812), (172, 116714), (268, 74906), (344, 58357), (536, 37453), (559, 35912), (871, 23048), (1118, 17956), (1742, 11524), (2236, 8978), (2881, 6968), (3484, 5762), (4472, 4489)]