20132590

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{271}}^1$

素因数の和:337

約数の個数: 64

約数和(自身を含む): 42301440

約数和(自身を除く): 22168850

約数列:

[1, 2, 5, 10, 17, 19, 23, 34, 38, 46, 85, 95, 115, 170, 190, 230, 271, 323, 391, 437, 542, 646, 782, 874, 1355, 1615, 1955, 2185, 2710, 3230, 3910, 4370, 4607, 5149, 6233, 7429, 9214, 10298, 12466, 14858, 23035, 25745, 31165, 37145, 46070, 51490, 62330, 74290, 87533, 105961, 118427, 175066, 211922, 236854, 437665, 529805, 592135, 875330, 1059610, 1184270, 2013259, 4026518, 10066295, 20132590]

約数ペア:

[(1, 20132590), (2, 10066295), (5, 4026518), (10, 2013259), (17, 1184270), (19, 1059610), (23, 875330), (34, 592135), (38, 529805), (46, 437665), (85, 236854), (95, 211922), (115, 175066), (170, 118427), (190, 105961), (230, 87533), (271, 74290), (323, 62330), (391, 51490), (437, 46070), (542, 37145), (646, 31165), (782, 25745), (874, 23035), (1355, 14858), (1615, 12466), (1955, 10298), (2185, 9214), (2710, 7429), (3230, 6233), (3910, 5149), (4370, 4607)]