131519988

素因数分解:

$2^2\times 3^2\times {\mathrm{29}}^1\times {\mathrm{263}}^1\times {\mathrm{479}}^1$

素因数の和:781

約数の個数: 72

約数和(自身を含む): 345945600

約数和(自身を除く): 214425612

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 29, 36, 58, 87, 116, 174, 261, 263, 348, 479, 522, 526, 789, 958, 1044, 1052, 1437, 1578, 1916, 2367, 2874, 3156, 4311, 4734, 5748, 7627, 8622, 9468, 13891, 15254, 17244, 22881, 27782, 30508, 41673, 45762, 55564, 68643, 83346, 91524, 125019, 125977, 137286, 166692, 250038, 251954, 274572, 377931, 500076, 503908, 755862, 1133793, 1511724, 2267586, 3653333, 4535172, 7306666, 10959999, 14613332, 21919998, 32879997, 43839996, 65759994, 131519988]

約数ペア:

[(1, 131519988), (2, 65759994), (3, 43839996), (4, 32879997), (6, 21919998), (9, 14613332), (12, 10959999), (18, 7306666), (29, 4535172), (36, 3653333), (58, 2267586), (87, 1511724), (116, 1133793), (174, 755862), (261, 503908), (263, 500076), (348, 377931), (479, 274572), (522, 251954), (526, 250038), (789, 166692), (958, 137286), (1044, 125977), (1052, 125019), (1437, 91524), (1578, 83346), (1916, 68643), (2367, 55564), (2874, 45762), (3156, 41673), (4311, 30508), (4734, 27782), (5748, 22881), (7627, 17244), (8622, 15254), (9468, 13891)]