20816550

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{167}}^1\times {\mathrm{277}}^1$

素因数の和:462

約数の個数: 72

約数和(自身を含む): 56465136

約数和(自身を除く): 35648586

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 45, 50, 75, 90, 150, 167, 225, 277, 334, 450, 501, 554, 831, 835, 1002, 1385, 1503, 1662, 1670, 2493, 2505, 2770, 3006, 4155, 4175, 4986, 5010, 6925, 7515, 8310, 8350, 12465, 12525, 13850, 15030, 20775, 24930, 25050, 37575, 41550, 46259, 62325, 75150, 92518, 124650, 138777, 231295, 277554, 416331, 462590, 693885, 832662, 1156475, 1387770, 2081655, 2312950, 3469425, 4163310, 6938850, 10408275, 20816550]

約数ペア:

[(1, 20816550), (2, 10408275), (3, 6938850), (5, 4163310), (6, 3469425), (9, 2312950), (10, 2081655), (15, 1387770), (18, 1156475), (25, 832662), (30, 693885), (45, 462590), (50, 416331), (75, 277554), (90, 231295), (150, 138777), (167, 124650), (225, 92518), (277, 75150), (334, 62325), (450, 46259), (501, 41550), (554, 37575), (831, 25050), (835, 24930), (1002, 20775), (1385, 15030), (1503, 13850), (1662, 12525), (1670, 12465), (2493, 8350), (2505, 8310), (2770, 7515), (3006, 6925), (4155, 5010), (4175, 4986)]