199919080

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{45853}}^1$

素因数の和:45973

約数の個数: 32

約数和(自身を含む): 453954600

約数和(自身を除く): 254035520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 45853, 91706, 183412, 229265, 366824, 458530, 917060, 1834120, 4997977, 9995954, 19991908, 24989885, 39983816, 49979770, 99959540, 199919080]

約数ペア:

[(1, 199919080), (2, 99959540), (4, 49979770), (5, 39983816), (8, 24989885), (10, 19991908), (20, 9995954), (40, 4997977), (109, 1834120), (218, 917060), (436, 458530), (545, 366824), (872, 229265), (1090, 183412), (2180, 91706), (4360, 45853)]