11556220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^3\times {\mathrm{263}}^1$

素因数の和:311

約数の個数: 48

約数和(自身を含む): 26389440

約数和(自身を除く): 14833220

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 263, 338, 526, 676, 845, 1052, 1315, 1690, 2197, 2630, 3380, 3419, 4394, 5260, 6838, 8788, 10985, 13676, 17095, 21970, 34190, 43940, 44447, 68380, 88894, 177788, 222235, 444470, 577811, 888940, 1155622, 2311244, 2889055, 5778110, 11556220]

約数ペア:

[(1, 11556220), (2, 5778110), (4, 2889055), (5, 2311244), (10, 1155622), (13, 888940), (20, 577811), (26, 444470), (52, 222235), (65, 177788), (130, 88894), (169, 68380), (260, 44447), (263, 43940), (338, 34190), (526, 21970), (676, 17095), (845, 13676), (1052, 10985), (1315, 8788), (1690, 6838), (2197, 5260), (2630, 4394), (3380, 3419)]