20010520

素因数分解:

$2^3\times 5^1\times {\mathrm{151}}^1\times {\mathrm{3313}}^1$

素因数の和:3475

約数の個数: 32

約数和(自身を含む): 45335520

約数和(自身を除く): 25325000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 151, 302, 604, 755, 1208, 1510, 3020, 3313, 6040, 6626, 13252, 16565, 26504, 33130, 66260, 132520, 500263, 1000526, 2001052, 2501315, 4002104, 5002630, 10005260, 20010520]

約数ペア:

[(1, 20010520), (2, 10005260), (4, 5002630), (5, 4002104), (8, 2501315), (10, 2001052), (20, 1000526), (40, 500263), (151, 132520), (302, 66260), (604, 33130), (755, 26504), (1208, 16565), (1510, 13252), (3020, 6626), (3313, 6040)]