15781860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{2039}}^1$

素因数の和:2097

約数の個数: 72

約数和(自身を含む): 49008960

約数和(自身を除く): 33227100

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 43, 45, 60, 86, 90, 129, 172, 180, 215, 258, 387, 430, 516, 645, 774, 860, 1290, 1548, 1935, 2039, 2580, 3870, 4078, 6117, 7740, 8156, 10195, 12234, 18351, 20390, 24468, 30585, 36702, 40780, 61170, 73404, 87677, 91755, 122340, 175354, 183510, 263031, 350708, 367020, 438385, 526062, 789093, 876770, 1052124, 1315155, 1578186, 1753540, 2630310, 3156372, 3945465, 5260620, 7890930, 15781860]

約数ペア:

[(1, 15781860), (2, 7890930), (3, 5260620), (4, 3945465), (5, 3156372), (6, 2630310), (9, 1753540), (10, 1578186), (12, 1315155), (15, 1052124), (18, 876770), (20, 789093), (30, 526062), (36, 438385), (43, 367020), (45, 350708), (60, 263031), (86, 183510), (90, 175354), (129, 122340), (172, 91755), (180, 87677), (215, 73404), (258, 61170), (387, 40780), (430, 36702), (516, 30585), (645, 24468), (774, 20390), (860, 18351), (1290, 12234), (1548, 10195), (1935, 8156), (2039, 7740), (2580, 6117), (3870, 4078)]