28720152

素因数分解:

$2^3\times 3^2\times {\mathrm{239}}^1\times {\mathrm{1669}}^1$

素因数の和:1920

約数の個数: 48

約数和(自身を含む): 78156000

約数和(自身を除く): 49435848

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 239, 478, 717, 956, 1434, 1669, 1912, 2151, 2868, 3338, 4302, 5007, 5736, 6676, 8604, 10014, 13352, 15021, 17208, 20028, 30042, 40056, 60084, 120168, 398891, 797782, 1196673, 1595564, 2393346, 3191128, 3590019, 4786692, 7180038, 9573384, 14360076, 28720152]

約数ペア:

[(1, 28720152), (2, 14360076), (3, 9573384), (4, 7180038), (6, 4786692), (8, 3590019), (9, 3191128), (12, 2393346), (18, 1595564), (24, 1196673), (36, 797782), (72, 398891), (239, 120168), (478, 60084), (717, 40056), (956, 30042), (1434, 20028), (1669, 17208), (1912, 15021), (2151, 13352), (2868, 10014), (3338, 8604), (4302, 6676), (5007, 5736)]