666380820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{1586621}}^1$

素因数の和:1586640

約数の個数: 48

約数和(自身を含む): 2132419968

約数和(自身を除く): 1466039148

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, 1586621, 3173242, 4759863, 6346484, 7933105, 9519726, 11106347, 15866210, 19039452, 22212694, 23799315, 31732420, 33319041, 44425388, 47598630, 55531735, 66638082, 95197260, 111063470, 133276164, 166595205, 222126940, 333190410, 666380820]

約数ペア:

[(1, 666380820), (2, 333190410), (3, 222126940), (4, 166595205), (5, 133276164), (6, 111063470), (7, 95197260), (10, 66638082), (12, 55531735), (14, 47598630), (15, 44425388), (20, 33319041), (21, 31732420), (28, 23799315), (30, 22212694), (35, 19039452), (42, 15866210), (60, 11106347), (70, 9519726), (84, 7933105), (105, 6346484), (140, 4759863), (210, 3173242), (420, 1586621)]