219778910

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{23159}}^1$

素因数の和:23252

約数の個数: 32

約数和(自身を含む): 431887680

約数和(自身を除く): 212108770

約数列:

[1, 2, 5, 10, 13, 26, 65, 73, 130, 146, 365, 730, 949, 1898, 4745, 9490, 23159, 46318, 115795, 231590, 301067, 602134, 1505335, 1690607, 3010670, 3381214, 8453035, 16906070, 21977891, 43955782, 109889455, 219778910]

約数ペア:

[(1, 219778910), (2, 109889455), (5, 43955782), (10, 21977891), (13, 16906070), (26, 8453035), (65, 3381214), (73, 3010670), (130, 1690607), (146, 1505335), (365, 602134), (730, 301067), (949, 231590), (1898, 115795), (4745, 46318), (9490, 23159)]