20512462168

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{395749}}^1$

素因数の和:395816

約数の個数: 64

約数和(自身を含む): 45590400000

約数和(自身を除く): 25077937832

約数列:

[1, 2, 4, 8, 11, 19, 22, 31, 38, 44, 62, 76, 88, 124, 152, 209, 248, 341, 418, 589, 682, 836, 1178, 1364, 1672, 2356, 2728, 4712, 6479, 12958, 25916, 51832, 395749, 791498, 1582996, 3165992, 4353239, 7519231, 8706478, 12268219, 15038462, 17412956, 24536438, 30076924, 34825912, 49072876, 60153848, 82711541, 98145752, 134950409, 165423082, 233096161, 269900818, 330846164, 466192322, 539801636, 661692328, 932384644, 1079603272, 1864769288, 2564057771, 5128115542, 10256231084, 20512462168]

約数ペア:

[(1, 20512462168), (2, 10256231084), (4, 5128115542), (8, 2564057771), (11, 1864769288), (19, 1079603272), (22, 932384644), (31, 661692328), (38, 539801636), (44, 466192322), (62, 330846164), (76, 269900818), (88, 233096161), (124, 165423082), (152, 134950409), (209, 98145752), (248, 82711541), (341, 60153848), (418, 49072876), (589, 34825912), (682, 30076924), (836, 24536438), (1178, 17412956), (1364, 15038462), (1672, 12268219), (2356, 8706478), (2728, 7519231), (4712, 4353239), (6479, 3165992), (12958, 1582996), (25916, 791498), (51832, 395749)]