19424980

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{23689}}^1$

素因数の和:23739

約数の個数: 24

約数和(自身を含む): 41789160

約数和(自身を除く): 22364180

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 23689, 47378, 94756, 118445, 236890, 473780, 971249, 1942498, 3884996, 4856245, 9712490, 19424980]

約数ペア:

[(1, 19424980), (2, 9712490), (4, 4856245), (5, 3884996), (10, 1942498), (20, 971249), (41, 473780), (82, 236890), (164, 118445), (205, 94756), (410, 47378), (820, 23689)]