20808112052

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{355063}}^1$

素因数の和:355117

約数の個数: 72

約数和(自身を含む): 47601300096

約数和(自身を除く): 26793188044

約数列:

[1, 2, 4, 7, 13, 14, 23, 26, 28, 46, 49, 52, 91, 92, 98, 161, 182, 196, 299, 322, 364, 598, 637, 644, 1127, 1196, 1274, 2093, 2254, 2548, 4186, 4508, 8372, 14651, 29302, 58604, 355063, 710126, 1420252, 2485441, 4615819, 4970882, 8166449, 9231638, 9941764, 16332898, 17398087, 18463276, 32310733, 32665796, 34796174, 57165143, 64621466, 69592348, 106163837, 114330286, 129242932, 212327674, 226175131, 228660572, 400156001, 424655348, 452350262, 743146859, 800312002, 904700524, 1486293718, 1600624004, 2972587436, 5202028013, 10404056026, 20808112052]

約数ペア:

[(1, 20808112052), (2, 10404056026), (4, 5202028013), (7, 2972587436), (13, 1600624004), (14, 1486293718), (23, 904700524), (26, 800312002), (28, 743146859), (46, 452350262), (49, 424655348), (52, 400156001), (91, 228660572), (92, 226175131), (98, 212327674), (161, 129242932), (182, 114330286), (196, 106163837), (299, 69592348), (322, 64621466), (364, 57165143), (598, 34796174), (637, 32665796), (644, 32310733), (1127, 18463276), (1196, 17398087), (1274, 16332898), (2093, 9941764), (2254, 9231638), (2548, 8166449), (4186, 4970882), (4508, 4615819), (8372, 2485441), (14651, 1420252), (29302, 710126), (58604, 355063)]