19719220

素因数分解:

$2^2\times 5^1\times {\mathrm{743}}^1\times {\mathrm{1327}}^1$

素因数の和:2079

約数の個数: 24

約数和(自身を含む): 41497344

約数和(自身を除く): 21778124

約数列:

[1, 2, 4, 5, 10, 20, 743, 1327, 1486, 2654, 2972, 3715, 5308, 6635, 7430, 13270, 14860, 26540, 985961, 1971922, 3943844, 4929805, 9859610, 19719220]

約数ペア:

[(1, 19719220), (2, 9859610), (4, 4929805), (5, 3943844), (10, 1971922), (20, 985961), (743, 26540), (1327, 14860), (1486, 13270), (2654, 7430), (2972, 6635), (3715, 5308)]