20821536

素因数分解:

$2^5\times 3^4\times {\mathrm{29}}^1\times {\mathrm{277}}^1$

素因数の和:328

約数の個数: 120

約数和(自身を含む): 63575820

約数和(自身を除く): 42754284

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 29, 32, 36, 48, 54, 58, 72, 81, 87, 96, 108, 116, 144, 162, 174, 216, 232, 261, 277, 288, 324, 348, 432, 464, 522, 554, 648, 696, 783, 831, 864, 928, 1044, 1108, 1296, 1392, 1566, 1662, 2088, 2216, 2349, 2493, 2592, 2784, 3132, 3324, 4176, 4432, 4698, 4986, 6264, 6648, 7479, 8033, 8352, 8864, 9396, 9972, 12528, 13296, 14958, 16066, 18792, 19944, 22437, 24099, 25056, 26592, 29916, 32132, 37584, 39888, 44874, 48198, 59832, 64264, 72297, 75168, 79776, 89748, 96396, 119664, 128528, 144594, 179496, 192792, 216891, 239328, 257056, 289188, 358992, 385584, 433782, 578376, 650673, 717984, 771168, 867564, 1156752, 1301346, 1735128, 2313504, 2602692, 3470256, 5205384, 6940512, 10410768, 20821536]

約数ペア:

[(1, 20821536), (2, 10410768), (3, 6940512), (4, 5205384), (6, 3470256), (8, 2602692), (9, 2313504), (12, 1735128), (16, 1301346), (18, 1156752), (24, 867564), (27, 771168), (29, 717984), (32, 650673), (36, 578376), (48, 433782), (54, 385584), (58, 358992), (72, 289188), (81, 257056), (87, 239328), (96, 216891), (108, 192792), (116, 179496), (144, 144594), (162, 128528), (174, 119664), (216, 96396), (232, 89748), (261, 79776), (277, 75168), (288, 72297), (324, 64264), (348, 59832), (432, 48198), (464, 44874), (522, 39888), (554, 37584), (648, 32132), (696, 29916), (783, 26592), (831, 25056), (864, 24099), (928, 22437), (1044, 19944), (1108, 18792), (1296, 16066), (1392, 14958), (1566, 13296), (1662, 12528), (2088, 9972), (2216, 9396), (2349, 8864), (2493, 8352), (2592, 8033), (2784, 7479), (3132, 6648), (3324, 6264), (4176, 4986), (4432, 4698)]