20420950

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{347}}^1$

素因数の和:477

約数の個数: 48

約数和(自身を含む): 41943744

約数和(自身を除く): 21522794

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 107, 110, 214, 275, 347, 535, 550, 694, 1070, 1177, 1735, 2354, 2675, 3470, 3817, 5350, 5885, 7634, 8675, 11770, 17350, 19085, 29425, 37129, 38170, 58850, 74258, 95425, 185645, 190850, 371290, 408419, 816838, 928225, 1856450, 2042095, 4084190, 10210475, 20420950]

約数ペア:

[(1, 20420950), (2, 10210475), (5, 4084190), (10, 2042095), (11, 1856450), (22, 928225), (25, 816838), (50, 408419), (55, 371290), (107, 190850), (110, 185645), (214, 95425), (275, 74258), (347, 58850), (535, 38170), (550, 37129), (694, 29425), (1070, 19085), (1177, 17350), (1735, 11770), (2354, 8675), (2675, 7634), (3470, 5885), (3817, 5350)]