61991780

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{30689}}^1$

素因数の和:30799

約数の個数: 24

約数和(自身を含む): 131475960

約数和(自身を除く): 69484180

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 30689, 61378, 122756, 153445, 306890, 613780, 3099589, 6199178, 12398356, 15497945, 30995890, 61991780]

約数ペア:

[(1, 61991780), (2, 30995890), (4, 15497945), (5, 12398356), (10, 6199178), (20, 3099589), (101, 613780), (202, 306890), (404, 153445), (505, 122756), (1010, 61378), (2020, 30689)]