20805616

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{4349}}^1$

素因数の和:4393

約数の個数: 40

約数和(自身を含む): 45309600

約数和(自身を除く): 24503984

約数列:

[1, 2, 4, 8, 13, 16, 23, 26, 46, 52, 92, 104, 184, 208, 299, 368, 598, 1196, 2392, 4349, 4784, 8698, 17396, 34792, 56537, 69584, 100027, 113074, 200054, 226148, 400108, 452296, 800216, 904592, 1300351, 1600432, 2600702, 5201404, 10402808, 20805616]

約数ペア:

[(1, 20805616), (2, 10402808), (4, 5201404), (8, 2600702), (13, 1600432), (16, 1300351), (23, 904592), (26, 800216), (46, 452296), (52, 400108), (92, 226148), (104, 200054), (184, 113074), (208, 100027), (299, 69584), (368, 56537), (598, 34792), (1196, 17396), (2392, 8698), (4349, 4784)]