20261872

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{461}}^1$

素因数の和:577

約数の個数: 40

約数和(自身を含む): 40903632

約数和(自身を除く): 20641760

約数列:

[1, 2, 4, 8, 16, 41, 67, 82, 134, 164, 268, 328, 461, 536, 656, 922, 1072, 1844, 2747, 3688, 5494, 7376, 10988, 18901, 21976, 30887, 37802, 43952, 61774, 75604, 123548, 151208, 247096, 302416, 494192, 1266367, 2532734, 5065468, 10130936, 20261872]

約数ペア:

[(1, 20261872), (2, 10130936), (4, 5065468), (8, 2532734), (16, 1266367), (41, 494192), (67, 302416), (82, 247096), (134, 151208), (164, 123548), (268, 75604), (328, 61774), (461, 43952), (536, 37802), (656, 30887), (922, 21976), (1072, 18901), (1844, 10988), (2747, 7376), (3688, 5494)]