15828920

素因数分解:

$2^3\times 5^1\times {\mathrm{307}}^1\times {\mathrm{1289}}^1$

素因数の和:1607

約数の個数: 32

約数和(自身を含む): 35758800

約数和(自身を除く): 19929880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 307, 614, 1228, 1289, 1535, 2456, 2578, 3070, 5156, 6140, 6445, 10312, 12280, 12890, 25780, 51560, 395723, 791446, 1582892, 1978615, 3165784, 3957230, 7914460, 15828920]

約数ペア:

[(1, 15828920), (2, 7914460), (4, 3957230), (5, 3165784), (8, 1978615), (10, 1582892), (20, 791446), (40, 395723), (307, 51560), (614, 25780), (1228, 12890), (1289, 12280), (1535, 10312), (2456, 6445), (2578, 6140), (3070, 5156)]