201916505

素因数分解:

$5^1\times 7^2\times {\mathrm{109}}^1\times {\mathrm{7561}}^1$

素因数の和:7689

約数の個数: 24

約数和(自身を含む): 284482440

約数和(自身を除く): 82565935

約数列:

[1, 5, 7, 35, 49, 109, 245, 545, 763, 3815, 5341, 7561, 26705, 37805, 52927, 264635, 370489, 824149, 1852445, 4120745, 5769043, 28845215, 40383301, 201916505]

約数ペア:

[(1, 201916505), (5, 40383301), (7, 28845215), (35, 5769043), (49, 4120745), (109, 1852445), (245, 824149), (545, 370489), (763, 264635), (3815, 52927), (5341, 37805), (7561, 26705)]