256472080

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{139387}}^1$

素因数の和:139423

約数の個数: 40

約数和(自身を含む): 622228032

約数和(自身を除く): 365755952

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 139387, 278774, 557548, 696935, 1115096, 1393870, 2230192, 2787740, 3205901, 5575480, 6411802, 11150960, 12823604, 16029505, 25647208, 32059010, 51294416, 64118020, 128236040, 256472080]

約数ペア:

[(1, 256472080), (2, 128236040), (4, 64118020), (5, 51294416), (8, 32059010), (10, 25647208), (16, 16029505), (20, 12823604), (23, 11150960), (40, 6411802), (46, 5575480), (80, 3205901), (92, 2787740), (115, 2230192), (184, 1393870), (230, 1115096), (368, 696935), (460, 557548), (920, 278774), (1840, 139387)]