90190960

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{10343}}^1$

素因数の和:10465

約数の個数: 40

約数和(自身を含む): 211638240

約数和(自身を除く): 121447280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1744, 2180, 4360, 8720, 10343, 20686, 41372, 51715, 82744, 103430, 165488, 206860, 413720, 827440, 1127387, 2254774, 4509548, 5636935, 9019096, 11273870, 18038192, 22547740, 45095480, 90190960]

約数ペア:

[(1, 90190960), (2, 45095480), (4, 22547740), (5, 18038192), (8, 11273870), (10, 9019096), (16, 5636935), (20, 4509548), (40, 2254774), (80, 1127387), (109, 827440), (218, 413720), (436, 206860), (545, 165488), (872, 103430), (1090, 82744), (1744, 51715), (2180, 41372), (4360, 20686), (8720, 10343)]