820612940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{433}}^1\times {\mathrm{13537}}^1$

素因数の和:13986

約数の個数: 48

約数和(自身を含む): 1974165312

約数和(自身を除く): 1153552372

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 433, 866, 1732, 2165, 3031, 4330, 6062, 8660, 12124, 13537, 15155, 27074, 30310, 54148, 60620, 67685, 94759, 135370, 189518, 270740, 379036, 473795, 947590, 1895180, 5861521, 11723042, 23446084, 29307605, 41030647, 58615210, 82061294, 117230420, 164122588, 205153235, 410306470, 820612940]

約数ペア:

[(1, 820612940), (2, 410306470), (4, 205153235), (5, 164122588), (7, 117230420), (10, 82061294), (14, 58615210), (20, 41030647), (28, 29307605), (35, 23446084), (70, 11723042), (140, 5861521), (433, 1895180), (866, 947590), (1732, 473795), (2165, 379036), (3031, 270740), (4330, 189518), (6062, 135370), (8660, 94759), (12124, 67685), (13537, 60620), (15155, 54148), (27074, 30310)]