56457640

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{563}}^1$

素因数の和:706

約数の個数: 64

約数和(自身を含む): 134006400

約数和(自身を除く): 77548760

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 109, 115, 184, 218, 230, 436, 460, 545, 563, 872, 920, 1090, 1126, 2180, 2252, 2507, 2815, 4360, 4504, 5014, 5630, 10028, 11260, 12535, 12949, 20056, 22520, 25070, 25898, 50140, 51796, 61367, 64745, 100280, 103592, 122734, 129490, 245468, 258980, 306835, 490936, 517960, 613670, 1227340, 1411441, 2454680, 2822882, 5645764, 7057205, 11291528, 14114410, 28228820, 56457640]

約数ペア:

[(1, 56457640), (2, 28228820), (4, 14114410), (5, 11291528), (8, 7057205), (10, 5645764), (20, 2822882), (23, 2454680), (40, 1411441), (46, 1227340), (92, 613670), (109, 517960), (115, 490936), (184, 306835), (218, 258980), (230, 245468), (436, 129490), (460, 122734), (545, 103592), (563, 100280), (872, 64745), (920, 61367), (1090, 51796), (1126, 50140), (2180, 25898), (2252, 25070), (2507, 22520), (2815, 20056), (4360, 12949), (4504, 12535), (5014, 11260), (5630, 10028)]