20698532608

素因数分解:

$2^8\times {\mathrm{13}}^1\times {\mathrm{293}}^1\times {\mathrm{21227}}^1$

素因数の和:21549

約数の個数: 72

約数和(自身を含む): 44648342928

約数和(自身を除く): 23949810320

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 256, 293, 416, 586, 832, 1172, 1664, 2344, 3328, 3809, 4688, 7618, 9376, 15236, 18752, 21227, 30472, 37504, 42454, 60944, 75008, 84908, 121888, 169816, 243776, 275951, 339632, 487552, 551902, 679264, 975104, 1103804, 1358528, 2207608, 2717056, 4415216, 5434112, 6219511, 8830432, 12439022, 17660864, 24878044, 35321728, 49756088, 70643456, 80853643, 99512176, 161707286, 199024352, 323414572, 398048704, 646829144, 796097408, 1293658288, 1592194816, 2587316576, 5174633152, 10349266304, 20698532608]

約数ペア:

[(1, 20698532608), (2, 10349266304), (4, 5174633152), (8, 2587316576), (13, 1592194816), (16, 1293658288), (26, 796097408), (32, 646829144), (52, 398048704), (64, 323414572), (104, 199024352), (128, 161707286), (208, 99512176), (256, 80853643), (293, 70643456), (416, 49756088), (586, 35321728), (832, 24878044), (1172, 17660864), (1664, 12439022), (2344, 8830432), (3328, 6219511), (3809, 5434112), (4688, 4415216), (7618, 2717056), (9376, 2207608), (15236, 1358528), (18752, 1103804), (21227, 975104), (30472, 679264), (37504, 551902), (42454, 487552), (60944, 339632), (75008, 275951), (84908, 243776), (121888, 169816)]