19621180

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{7489}}^1$

素因数の和:7629

約数の個数: 24

約数和(自身を含む): 41524560

約数和(自身を除く): 21903380

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 7489, 14978, 29956, 37445, 74890, 149780, 981059, 1962118, 3924236, 4905295, 9810590, 19621180]

約数ペア:

[(1, 19621180), (2, 9810590), (4, 4905295), (5, 3924236), (10, 1962118), (20, 981059), (131, 149780), (262, 74890), (524, 37445), (655, 29956), (1310, 14978), (2620, 7489)]