205258620

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{488711}}^1$

素因数の和:488730

約数の個数: 48

約数和(自身を含む): 656828928

約数和(自身を除く): 451570308

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 488711, 977422, 1466133, 1954844, 2443555, 2932266, 3420977, 4887110, 5864532, 6841954, 7330665, 9774220, 10262931, 13683908, 14661330, 17104885, 20525862, 29322660, 34209770, 41051724, 51314655, 68419540, 102629310, 205258620]

約数ペア:

[(1, 205258620), (2, 102629310), (3, 68419540), (4, 51314655), (5, 41051724), (6, 34209770), (7, 29322660), (10, 20525862), (12, 17104885), (14, 14661330), (15, 13683908), (20, 10262931), (21, 9774220), (28, 7330665), (30, 6841954), (35, 5864532), (42, 4887110), (60, 3420977), (70, 2932266), (84, 2443555), (105, 1954844), (140, 1466133), (210, 977422), (420, 488711)]