257581660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{9533}}^1$

素因数の和:9742

約数の個数: 48

約数和(自身を含む): 621464256

約数和(自身を除く): 363882596

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 193, 386, 772, 965, 1351, 1930, 2702, 3860, 5404, 6755, 9533, 13510, 19066, 27020, 38132, 47665, 66731, 95330, 133462, 190660, 266924, 333655, 667310, 1334620, 1839869, 3679738, 7359476, 9199345, 12879083, 18398690, 25758166, 36797380, 51516332, 64395415, 128790830, 257581660]

約数ペア:

[(1, 257581660), (2, 128790830), (4, 64395415), (5, 51516332), (7, 36797380), (10, 25758166), (14, 18398690), (20, 12879083), (28, 9199345), (35, 7359476), (70, 3679738), (140, 1839869), (193, 1334620), (386, 667310), (772, 333655), (965, 266924), (1351, 190660), (1930, 133462), (2702, 95330), (3860, 66731), (5404, 47665), (6755, 38132), (9533, 27020), (13510, 19066)]