820199300

素因数分解:

$2^2\times 5^2\times {\mathrm{103}}^1\times {\mathrm{79631}}^1$

素因数の和:79748

約数の個数: 36

約数和(自身を含む): 1797134976

約数和(自身を除く): 976935676

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 103, 206, 412, 515, 1030, 2060, 2575, 5150, 10300, 79631, 159262, 318524, 398155, 796310, 1592620, 1990775, 3981550, 7963100, 8201993, 16403986, 32807972, 41009965, 82019930, 164039860, 205049825, 410099650, 820199300]

約数ペア:

[(1, 820199300), (2, 410099650), (4, 205049825), (5, 164039860), (10, 82019930), (20, 41009965), (25, 32807972), (50, 16403986), (100, 8201993), (103, 7963100), (206, 3981550), (412, 1990775), (515, 1592620), (1030, 796310), (2060, 398155), (2575, 318524), (5150, 159262), (10300, 79631)]