12688020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{70489}}^1$

素因数の和:70504

約数の個数: 36

約数和(自身を含む): 38487540

約数和(自身を除く): 25799520

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 70489, 140978, 211467, 281956, 352445, 422934, 634401, 704890, 845868, 1057335, 1268802, 1409780, 2114670, 2537604, 3172005, 4229340, 6344010, 12688020]

約数ペア:

[(1, 12688020), (2, 6344010), (3, 4229340), (4, 3172005), (5, 2537604), (6, 2114670), (9, 1409780), (10, 1268802), (12, 1057335), (15, 845868), (18, 704890), (20, 634401), (30, 422934), (36, 352445), (45, 281956), (60, 211467), (90, 140978), (180, 70489)]