858691780

素因数分解:

$2^2\times 5^1\times {\mathrm{1579}}^1\times {\mathrm{27191}}^1$

素因数の和:28779

約数の個数: 24

約数和(自身を含む): 1804461120

約数和(自身を除く): 945769340

約数列:

[1, 2, 4, 5, 10, 20, 1579, 3158, 6316, 7895, 15790, 27191, 31580, 54382, 108764, 135955, 271910, 543820, 42934589, 85869178, 171738356, 214672945, 429345890, 858691780]

約数ペア:

[(1, 858691780), (2, 429345890), (4, 214672945), (5, 171738356), (10, 85869178), (20, 42934589), (1579, 543820), (3158, 271910), (6316, 135955), (7895, 108764), (15790, 54382), (27191, 31580)]