19646197168

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{1279}}^1\times {\mathrm{73849}}^1$

素因数の和:75149

約数の個数: 40

約数和(自身を含む): 41025152000

約数和(自身を除く): 21378954832

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 1279, 2558, 5116, 10232, 16627, 20464, 33254, 66508, 73849, 133016, 147698, 266032, 295396, 590792, 960037, 1181584, 1920074, 3840148, 7680296, 15360592, 94452871, 188905742, 377811484, 755622968, 1227887323, 1511245936, 2455774646, 4911549292, 9823098584, 19646197168]

約数ペア:

[(1, 19646197168), (2, 9823098584), (4, 4911549292), (8, 2455774646), (13, 1511245936), (16, 1227887323), (26, 755622968), (52, 377811484), (104, 188905742), (208, 94452871), (1279, 15360592), (2558, 7680296), (5116, 3840148), (10232, 1920074), (16627, 1181584), (20464, 960037), (33254, 590792), (66508, 295396), (73849, 266032), (133016, 147698)]