25617488

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{1559}}^1$

素因数の和:1659

約数の個数: 40

約数和(自身を含む): 54163200

約数和(自身を除く): 28545712

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 79, 104, 158, 208, 316, 632, 1027, 1264, 1559, 2054, 3118, 4108, 6236, 8216, 12472, 16432, 20267, 24944, 40534, 81068, 123161, 162136, 246322, 324272, 492644, 985288, 1601093, 1970576, 3202186, 6404372, 12808744, 25617488]

約数ペア:

[(1, 25617488), (2, 12808744), (4, 6404372), (8, 3202186), (13, 1970576), (16, 1601093), (26, 985288), (52, 492644), (79, 324272), (104, 246322), (158, 162136), (208, 123161), (316, 81068), (632, 40534), (1027, 24944), (1264, 20267), (1559, 16432), (2054, 12472), (3118, 8216), (4108, 6236)]