20655216

素因数分解:

$2^4\times 3^3\times {\mathrm{137}}^1\times {\mathrm{349}}^1$

素因数の和:503

約数の個数: 80

約数和(自身を含む): 59892000

約数和(自身を除く): 39236784

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 72, 108, 137, 144, 216, 274, 349, 411, 432, 548, 698, 822, 1047, 1096, 1233, 1396, 1644, 2094, 2192, 2466, 2792, 3141, 3288, 3699, 4188, 4932, 5584, 6282, 6576, 7398, 8376, 9423, 9864, 12564, 14796, 16752, 18846, 19728, 25128, 29592, 37692, 47813, 50256, 59184, 75384, 95626, 143439, 150768, 191252, 286878, 382504, 430317, 573756, 765008, 860634, 1147512, 1290951, 1721268, 2295024, 2581902, 3442536, 5163804, 6885072, 10327608, 20655216]

約数ペア:

[(1, 20655216), (2, 10327608), (3, 6885072), (4, 5163804), (6, 3442536), (8, 2581902), (9, 2295024), (12, 1721268), (16, 1290951), (18, 1147512), (24, 860634), (27, 765008), (36, 573756), (48, 430317), (54, 382504), (72, 286878), (108, 191252), (137, 150768), (144, 143439), (216, 95626), (274, 75384), (349, 59184), (411, 50256), (432, 47813), (548, 37692), (698, 29592), (822, 25128), (1047, 19728), (1096, 18846), (1233, 16752), (1396, 14796), (1644, 12564), (2094, 9864), (2192, 9423), (2466, 8376), (2792, 7398), (3141, 6576), (3288, 6282), (3699, 5584), (4188, 4932)]