20434140

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{479}}^1$

素因数の和:576

約数の個数: 96

約数和(自身を含む): 64512000

約数和(自身を除く): 44077860

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 79, 90, 108, 135, 158, 180, 237, 270, 316, 395, 474, 479, 540, 711, 790, 948, 958, 1185, 1422, 1437, 1580, 1916, 2133, 2370, 2395, 2844, 2874, 3555, 4266, 4311, 4740, 4790, 5748, 7110, 7185, 8532, 8622, 9580, 10665, 12933, 14220, 14370, 17244, 21330, 21555, 25866, 28740, 37841, 42660, 43110, 51732, 64665, 75682, 86220, 113523, 129330, 151364, 189205, 227046, 258660, 340569, 378410, 454092, 567615, 681138, 756820, 1021707, 1135230, 1362276, 1702845, 2043414, 2270460, 3405690, 4086828, 5108535, 6811380, 10217070, 20434140]

約数ペア:

[(1, 20434140), (2, 10217070), (3, 6811380), (4, 5108535), (5, 4086828), (6, 3405690), (9, 2270460), (10, 2043414), (12, 1702845), (15, 1362276), (18, 1135230), (20, 1021707), (27, 756820), (30, 681138), (36, 567615), (45, 454092), (54, 378410), (60, 340569), (79, 258660), (90, 227046), (108, 189205), (135, 151364), (158, 129330), (180, 113523), (237, 86220), (270, 75682), (316, 64665), (395, 51732), (474, 43110), (479, 42660), (540, 37841), (711, 28740), (790, 25866), (948, 21555), (958, 21330), (1185, 17244), (1422, 14370), (1437, 14220), (1580, 12933), (1916, 10665), (2133, 9580), (2370, 8622), (2395, 8532), (2844, 7185), (2874, 7110), (3555, 5748), (4266, 4790), (4311, 4740)]