19800976

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{4139}}^1$

素因数の和:4183

約数の個数: 40

約数和(自身を含む): 43122240

約数和(自身を除く): 23321264

約数列:

[1, 2, 4, 8, 13, 16, 23, 26, 46, 52, 92, 104, 184, 208, 299, 368, 598, 1196, 2392, 4139, 4784, 8278, 16556, 33112, 53807, 66224, 95197, 107614, 190394, 215228, 380788, 430456, 761576, 860912, 1237561, 1523152, 2475122, 4950244, 9900488, 19800976]

約数ペア:

[(1, 19800976), (2, 9900488), (4, 4950244), (8, 2475122), (13, 1523152), (16, 1237561), (23, 860912), (26, 761576), (46, 430456), (52, 380788), (92, 215228), (104, 190394), (184, 107614), (208, 95197), (299, 66224), (368, 53807), (598, 33112), (1196, 16556), (2392, 8278), (4139, 4784)]