20810930

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{1409}}^1$

素因数の和:1634

約数の個数: 32

約数和(自身を含む): 43044480

約数和(自身を除く): 22233550

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 211, 422, 1055, 1409, 1477, 2110, 2818, 2954, 7045, 7385, 9863, 14090, 14770, 19726, 49315, 98630, 297299, 594598, 1486495, 2081093, 2972990, 4162186, 10405465, 20810930]

約数ペア:

[(1, 20810930), (2, 10405465), (5, 4162186), (7, 2972990), (10, 2081093), (14, 1486495), (35, 594598), (70, 297299), (211, 98630), (422, 49315), (1055, 19726), (1409, 14770), (1477, 14090), (2110, 9863), (2818, 7385), (2954, 7045)]