7940620

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{3931}}^1$

素因数の和:4041

約数の個数: 24

約数和(自身を含む): 16844688

約数和(自身を除く): 8904068

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 3931, 7862, 15724, 19655, 39310, 78620, 397031, 794062, 1588124, 1985155, 3970310, 7940620]

約数ペア:

[(1, 7940620), (2, 3970310), (4, 1985155), (5, 1588124), (10, 794062), (20, 397031), (101, 78620), (202, 39310), (404, 19655), (505, 15724), (1010, 7862), (2020, 3931)]