19774970

素因数分解:

$2^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{103}}^1\times {\mathrm{263}}^1$

素因数の和:446

約数の個数: 32

約数和(自身を含む): 36571392

約数和(自身を除く): 16796422

約数列:

[1, 2, 5, 10, 73, 103, 146, 206, 263, 365, 515, 526, 730, 1030, 1315, 2630, 7519, 15038, 19199, 27089, 37595, 38398, 54178, 75190, 95995, 135445, 191990, 270890, 1977497, 3954994, 9887485, 19774970]

約数ペア:

[(1, 19774970), (2, 9887485), (5, 3954994), (10, 1977497), (73, 270890), (103, 191990), (146, 135445), (206, 95995), (263, 75190), (365, 54178), (515, 38398), (526, 37595), (730, 27089), (1030, 19199), (1315, 15038), (2630, 7519)]