18140560

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{9859}}^1$

素因数の和:9895

約数の個数: 40

約数和(自身を含む): 44015040

約数和(自身を除く): 25874480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 9859, 19718, 39436, 49295, 78872, 98590, 157744, 197180, 226757, 394360, 453514, 788720, 907028, 1133785, 1814056, 2267570, 3628112, 4535140, 9070280, 18140560]

約数ペア:

[(1, 18140560), (2, 9070280), (4, 4535140), (5, 3628112), (8, 2267570), (10, 1814056), (16, 1133785), (20, 907028), (23, 788720), (40, 453514), (46, 394360), (80, 226757), (92, 197180), (115, 157744), (184, 98590), (230, 78872), (368, 49295), (460, 39436), (920, 19718), (1840, 9859)]