854840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1$

素因数の和:132

約数の個数: 64

約数和(自身を含む): 2280960

約数和(自身を除く): 1426120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 43, 56, 70, 71, 86, 140, 142, 172, 215, 280, 284, 301, 344, 355, 430, 497, 568, 602, 710, 860, 994, 1204, 1420, 1505, 1720, 1988, 2408, 2485, 2840, 3010, 3053, 3976, 4970, 6020, 6106, 9940, 12040, 12212, 15265, 19880, 21371, 24424, 30530, 42742, 61060, 85484, 106855, 122120, 170968, 213710, 427420, 854840]

約数ペア:

[(1, 854840), (2, 427420), (4, 213710), (5, 170968), (7, 122120), (8, 106855), (10, 85484), (14, 61060), (20, 42742), (28, 30530), (35, 24424), (40, 21371), (43, 19880), (56, 15265), (70, 12212), (71, 12040), (86, 9940), (140, 6106), (142, 6020), (172, 4970), (215, 3976), (280, 3053), (284, 3010), (301, 2840), (344, 2485), (355, 2408), (430, 1988), (497, 1720), (568, 1505), (602, 1420), (710, 1204), (860, 994)]