20722620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{137}}^1\times {\mathrm{2521}}^1$

素因数の和:2670

約数の個数: 48

約数和(自身を含む): 58470048

約数和(自身を除く): 37747428

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 137, 274, 411, 548, 685, 822, 1370, 1644, 2055, 2521, 2740, 4110, 5042, 7563, 8220, 10084, 12605, 15126, 25210, 30252, 37815, 50420, 75630, 151260, 345377, 690754, 1036131, 1381508, 1726885, 2072262, 3453770, 4144524, 5180655, 6907540, 10361310, 20722620]

約数ペア:

[(1, 20722620), (2, 10361310), (3, 6907540), (4, 5180655), (5, 4144524), (6, 3453770), (10, 2072262), (12, 1726885), (15, 1381508), (20, 1036131), (30, 690754), (60, 345377), (137, 151260), (274, 75630), (411, 50420), (548, 37815), (685, 30252), (822, 25210), (1370, 15126), (1644, 12605), (2055, 10084), (2521, 8220), (2740, 7563), (4110, 5042)]