31357836

素因数分解:

$2^2\times 3^2\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{431}}^1$

素因数の和:531

約数の個数: 72

約数和(自身を含む): 83026944

約数和(自身を除く): 51669108

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 43, 47, 86, 94, 129, 141, 172, 188, 258, 282, 387, 423, 431, 516, 564, 774, 846, 862, 1293, 1548, 1692, 1724, 2021, 2586, 3879, 4042, 5172, 6063, 7758, 8084, 12126, 15516, 18189, 18533, 20257, 24252, 36378, 37066, 40514, 55599, 60771, 72756, 74132, 81028, 111198, 121542, 166797, 182313, 222396, 243084, 333594, 364626, 667188, 729252, 871051, 1742102, 2613153, 3484204, 5226306, 7839459, 10452612, 15678918, 31357836]

約数ペア:

[(1, 31357836), (2, 15678918), (3, 10452612), (4, 7839459), (6, 5226306), (9, 3484204), (12, 2613153), (18, 1742102), (36, 871051), (43, 729252), (47, 667188), (86, 364626), (94, 333594), (129, 243084), (141, 222396), (172, 182313), (188, 166797), (258, 121542), (282, 111198), (387, 81028), (423, 74132), (431, 72756), (516, 60771), (564, 55599), (774, 40514), (846, 37066), (862, 36378), (1293, 24252), (1548, 20257), (1692, 18533), (1724, 18189), (2021, 15516), (2586, 12126), (3879, 8084), (4042, 7758), (5172, 6063)]