20757272

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{277}}^1$

素因数の和:348

約数の個数: 64

約数和(自身を含む): 45036000

約数和(自身を除く): 24278728

約数列:

[1, 2, 4, 8, 17, 19, 29, 34, 38, 58, 68, 76, 116, 136, 152, 232, 277, 323, 493, 551, 554, 646, 986, 1102, 1108, 1292, 1972, 2204, 2216, 2584, 3944, 4408, 4709, 5263, 8033, 9367, 9418, 10526, 16066, 18734, 18836, 21052, 32132, 37468, 37672, 42104, 64264, 74936, 89471, 136561, 152627, 178942, 273122, 305254, 357884, 546244, 610508, 715768, 1092488, 1221016, 2594659, 5189318, 10378636, 20757272]

約数ペア:

[(1, 20757272), (2, 10378636), (4, 5189318), (8, 2594659), (17, 1221016), (19, 1092488), (29, 715768), (34, 610508), (38, 546244), (58, 357884), (68, 305254), (76, 273122), (116, 178942), (136, 152627), (152, 136561), (232, 89471), (277, 74936), (323, 64264), (493, 42104), (551, 37672), (554, 37468), (646, 32132), (986, 21052), (1102, 18836), (1108, 18734), (1292, 16066), (1972, 10526), (2204, 9418), (2216, 9367), (2584, 8033), (3944, 5263), (4408, 4709)]