19982930

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{389}}^1\times {\mathrm{467}}^1$

素因数の和:874

約数の個数: 32

約数和(自身を含む): 39424320

約数和(自身を除く): 19441390

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 389, 467, 778, 934, 1945, 2335, 3890, 4279, 4670, 5137, 8558, 10274, 21395, 25685, 42790, 51370, 181663, 363326, 908315, 1816630, 1998293, 3996586, 9991465, 19982930]

約数ペア:

[(1, 19982930), (2, 9991465), (5, 3996586), (10, 1998293), (11, 1816630), (22, 908315), (55, 363326), (110, 181663), (389, 51370), (467, 42790), (778, 25685), (934, 21395), (1945, 10274), (2335, 8558), (3890, 5137), (4279, 4670)]