199173460

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{140263}}^1$

素因数の和:140343

約数の個数: 24

約数和(自身を含む): 424158336

約数和(自身を除く): 224984876

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 140263, 280526, 561052, 701315, 1402630, 2805260, 9958673, 19917346, 39834692, 49793365, 99586730, 199173460]

約数ペア:

[(1, 199173460), (2, 99586730), (4, 49793365), (5, 39834692), (10, 19917346), (20, 9958673), (71, 2805260), (142, 1402630), (284, 701315), (355, 561052), (710, 280526), (1420, 140263)]