55657480

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{32359}}^1$

素因数の和:32413

約数の個数: 32

約数和(自身を含む): 128145600

約数和(自身を除く): 72488120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 32359, 64718, 129436, 161795, 258872, 323590, 647180, 1294360, 1391437, 2782874, 5565748, 6957185, 11131496, 13914370, 27828740, 55657480]

約数ペア:

[(1, 55657480), (2, 27828740), (4, 13914370), (5, 11131496), (8, 6957185), (10, 5565748), (20, 2782874), (40, 1391437), (43, 1294360), (86, 647180), (172, 323590), (215, 258872), (344, 161795), (430, 129436), (860, 64718), (1720, 32359)]