20123344

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{149}}^1\times {\mathrm{367}}^1$

素因数の和:547

約数の個数: 40

約数和(自身を含む): 41068800

約数和(自身を除く): 20945456

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 149, 184, 298, 367, 368, 596, 734, 1192, 1468, 2384, 2936, 3427, 5872, 6854, 8441, 13708, 16882, 27416, 33764, 54683, 54832, 67528, 109366, 135056, 218732, 437464, 874928, 1257709, 2515418, 5030836, 10061672, 20123344]

約数ペア:

[(1, 20123344), (2, 10061672), (4, 5030836), (8, 2515418), (16, 1257709), (23, 874928), (46, 437464), (92, 218732), (149, 135056), (184, 109366), (298, 67528), (367, 54832), (368, 54683), (596, 33764), (734, 27416), (1192, 16882), (1468, 13708), (2384, 8441), (2936, 6854), (3427, 5872)]