20394180

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{12589}}^1$

素因数の和:12610

約数の個数: 60

約数和(自身を含む): 63982380

約数和(自身を除く): 43588200

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, 270, 324, 405, 540, 810, 1620, 12589, 25178, 37767, 50356, 62945, 75534, 113301, 125890, 151068, 188835, 226602, 251780, 339903, 377670, 453204, 566505, 679806, 755340, 1019709, 1133010, 1359612, 1699515, 2039418, 2266020, 3399030, 4078836, 5098545, 6798060, 10197090, 20394180]

約数ペア:

[(1, 20394180), (2, 10197090), (3, 6798060), (4, 5098545), (5, 4078836), (6, 3399030), (9, 2266020), (10, 2039418), (12, 1699515), (15, 1359612), (18, 1133010), (20, 1019709), (27, 755340), (30, 679806), (36, 566505), (45, 453204), (54, 377670), (60, 339903), (81, 251780), (90, 226602), (108, 188835), (135, 151068), (162, 125890), (180, 113301), (270, 75534), (324, 62945), (405, 50356), (540, 37767), (810, 25178), (1620, 12589)]