25373768

素因数分解:

$2^3\times 7^4\times {\mathrm{1321}}^1$

素因数の和:1355

約数の個数: 40

約数和(自身を含む): 55543830

約数和(自身を除く): 30170062

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 343, 392, 686, 1321, 1372, 2401, 2642, 2744, 4802, 5284, 9247, 9604, 10568, 18494, 19208, 36988, 64729, 73976, 129458, 258916, 453103, 517832, 906206, 1812412, 3171721, 3624824, 6343442, 12686884, 25373768]

約数ペア:

[(1, 25373768), (2, 12686884), (4, 6343442), (7, 3624824), (8, 3171721), (14, 1812412), (28, 906206), (49, 517832), (56, 453103), (98, 258916), (196, 129458), (343, 73976), (392, 64729), (686, 36988), (1321, 19208), (1372, 18494), (2401, 10568), (2642, 9604), (2744, 9247), (4802, 5284)]