281168140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{41227}}^1$

素因数の和:41278

約数の個数: 48

約数和(自身を含む): 664925184

約数和(自身を除く): 383757044

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 110, 124, 155, 220, 310, 341, 620, 682, 1364, 1705, 3410, 6820, 41227, 82454, 164908, 206135, 412270, 453497, 824540, 906994, 1278037, 1813988, 2267485, 2556074, 4534970, 5112148, 6390185, 9069940, 12780370, 14058407, 25560740, 28116814, 56233628, 70292035, 140584070, 281168140]

約数ペア:

[(1, 281168140), (2, 140584070), (4, 70292035), (5, 56233628), (10, 28116814), (11, 25560740), (20, 14058407), (22, 12780370), (31, 9069940), (44, 6390185), (55, 5112148), (62, 4534970), (110, 2556074), (124, 2267485), (155, 1813988), (220, 1278037), (310, 906994), (341, 824540), (620, 453497), (682, 412270), (1364, 206135), (1705, 164908), (3410, 82454), (6820, 41227)]