61981540

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{22621}}^1$

素因数の和:22767

約数の個数: 24

約数和(自身を含む): 131117112

約数和(自身を除く): 69135572

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 548, 685, 1370, 2740, 22621, 45242, 90484, 113105, 226210, 452420, 3099077, 6198154, 12396308, 15495385, 30990770, 61981540]

約数ペア:

[(1, 61981540), (2, 30990770), (4, 15495385), (5, 12396308), (10, 6198154), (20, 3099077), (137, 452420), (274, 226210), (548, 113105), (685, 90484), (1370, 45242), (2740, 22621)]