40020520

素因数分解:

$2^3\times 5^1\times {\mathrm{307}}^1\times {\mathrm{3259}}^1$

素因数の和:3577

約数の個数: 32

約数和(自身を含む): 90367200

約数和(自身を除く): 50346680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 307, 614, 1228, 1535, 2456, 3070, 3259, 6140, 6518, 12280, 13036, 16295, 26072, 32590, 65180, 130360, 1000513, 2001026, 4002052, 5002565, 8004104, 10005130, 20010260, 40020520]

約数ペア:

[(1, 40020520), (2, 20010260), (4, 10005130), (5, 8004104), (8, 5002565), (10, 4002052), (20, 2001026), (40, 1000513), (307, 130360), (614, 65180), (1228, 32590), (1535, 26072), (2456, 16295), (3070, 13036), (3259, 12280), (6140, 6518)]