18299824

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{181}}^1$

素因数の和:349

約数の個数: 40

約数和(自身を含む): 36560160

約数和(自身を除く): 18260336

約数列:

[1, 2, 4, 8, 16, 71, 89, 142, 178, 181, 284, 356, 362, 568, 712, 724, 1136, 1424, 1448, 2896, 6319, 12638, 12851, 16109, 25276, 25702, 32218, 50552, 51404, 64436, 101104, 102808, 128872, 205616, 257744, 1143739, 2287478, 4574956, 9149912, 18299824]

約数ペア:

[(1, 18299824), (2, 9149912), (4, 4574956), (8, 2287478), (16, 1143739), (71, 257744), (89, 205616), (142, 128872), (178, 102808), (181, 101104), (284, 64436), (356, 51404), (362, 50552), (568, 32218), (712, 25702), (724, 25276), (1136, 16109), (1424, 12851), (1448, 12638), (2896, 6319)]