20669580

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{4253}}^1$

素因数の和:4277

約数の個数: 72

約数和(自身を含む): 65035152

約数和(自身を除く): 44365572

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 243, 270, 324, 405, 486, 540, 810, 972, 1215, 1620, 2430, 4253, 4860, 8506, 12759, 17012, 21265, 25518, 38277, 42530, 51036, 63795, 76554, 85060, 114831, 127590, 153108, 191385, 229662, 255180, 344493, 382770, 459324, 574155, 688986, 765540, 1033479, 1148310, 1377972, 1722465, 2066958, 2296620, 3444930, 4133916, 5167395, 6889860, 10334790, 20669580]

約数ペア:

[(1, 20669580), (2, 10334790), (3, 6889860), (4, 5167395), (5, 4133916), (6, 3444930), (9, 2296620), (10, 2066958), (12, 1722465), (15, 1377972), (18, 1148310), (20, 1033479), (27, 765540), (30, 688986), (36, 574155), (45, 459324), (54, 382770), (60, 344493), (81, 255180), (90, 229662), (108, 191385), (135, 153108), (162, 127590), (180, 114831), (243, 85060), (270, 76554), (324, 63795), (405, 51036), (486, 42530), (540, 38277), (810, 25518), (972, 21265), (1215, 17012), (1620, 12759), (2430, 8506), (4253, 4860)]