20656768

素因数分解:

$2^7\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{863}}^1$

素因数の和:905

約数の個数: 64

約数和(自身を含む): 47589120

約数和(自身を除く): 26932352

約数列:

[1, 2, 4, 8, 11, 16, 17, 22, 32, 34, 44, 64, 68, 88, 128, 136, 176, 187, 272, 352, 374, 544, 704, 748, 863, 1088, 1408, 1496, 1726, 2176, 2992, 3452, 5984, 6904, 9493, 11968, 13808, 14671, 18986, 23936, 27616, 29342, 37972, 55232, 58684, 75944, 110464, 117368, 151888, 161381, 234736, 303776, 322762, 469472, 607552, 645524, 938944, 1215104, 1291048, 1877888, 2582096, 5164192, 10328384, 20656768]

約数ペア:

[(1, 20656768), (2, 10328384), (4, 5164192), (8, 2582096), (11, 1877888), (16, 1291048), (17, 1215104), (22, 938944), (32, 645524), (34, 607552), (44, 469472), (64, 322762), (68, 303776), (88, 234736), (128, 161381), (136, 151888), (176, 117368), (187, 110464), (272, 75944), (352, 58684), (374, 55232), (544, 37972), (704, 29342), (748, 27616), (863, 23936), (1088, 18986), (1408, 14671), (1496, 13808), (1726, 11968), (2176, 9493), (2992, 6904), (3452, 5984)]