21020200

素因数分解:

$2^3\times 5^2\times {\mathrm{227}}^1\times {\mathrm{463}}^1$

素因数の和:706

約数の個数: 48

約数和(自身を含む): 49193280

約数和(自身を除く): 28173080

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 227, 454, 463, 908, 926, 1135, 1816, 1852, 2270, 2315, 3704, 4540, 4630, 5675, 9080, 9260, 11350, 11575, 18520, 22700, 23150, 45400, 46300, 92600, 105101, 210202, 420404, 525505, 840808, 1051010, 2102020, 2627525, 4204040, 5255050, 10510100, 21020200]

約数ペア:

[(1, 21020200), (2, 10510100), (4, 5255050), (5, 4204040), (8, 2627525), (10, 2102020), (20, 1051010), (25, 840808), (40, 525505), (50, 420404), (100, 210202), (200, 105101), (227, 92600), (454, 46300), (463, 45400), (908, 23150), (926, 22700), (1135, 18520), (1816, 11575), (1852, 11350), (2270, 9260), (2315, 9080), (3704, 5675), (4540, 4630)]