20085429

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1$

素因数の和:154

約数の個数: 64

約数和(自身を含む): 35481600

約数和(自身を除く): 15396171

約数列:

[1, 3, 7, 13, 21, 29, 39, 43, 59, 87, 91, 129, 177, 203, 273, 301, 377, 413, 559, 609, 767, 903, 1131, 1239, 1247, 1677, 1711, 2301, 2537, 2639, 3741, 3913, 5133, 5369, 7611, 7917, 8729, 11739, 11977, 16107, 16211, 17759, 22243, 26187, 32981, 35931, 48633, 53277, 66729, 73573, 98943, 113477, 155701, 220719, 230867, 340431, 467103, 515011, 692601, 956449, 1545033, 2869347, 6695143, 20085429]

約数ペア:

[(1, 20085429), (3, 6695143), (7, 2869347), (13, 1545033), (21, 956449), (29, 692601), (39, 515011), (43, 467103), (59, 340431), (87, 230867), (91, 220719), (129, 155701), (177, 113477), (203, 98943), (273, 73573), (301, 66729), (377, 53277), (413, 48633), (559, 35931), (609, 32981), (767, 26187), (903, 22243), (1131, 17759), (1239, 16211), (1247, 16107), (1677, 11977), (1711, 11739), (2301, 8729), (2537, 7917), (2639, 7611), (3741, 5369), (3913, 5133)]