20005992

素因数分解:

$2^3\times 3^2\times {\mathrm{139}}^1\times {\mathrm{1999}}^1$

素因数の和:2150

約数の個数: 48

約数和(自身を含む): 54600000

約数和(自身を除く): 34594008

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 139, 278, 417, 556, 834, 1112, 1251, 1668, 1999, 2502, 3336, 3998, 5004, 5997, 7996, 10008, 11994, 15992, 17991, 23988, 35982, 47976, 71964, 143928, 277861, 555722, 833583, 1111444, 1667166, 2222888, 2500749, 3334332, 5001498, 6668664, 10002996, 20005992]

約数ペア:

[(1, 20005992), (2, 10002996), (3, 6668664), (4, 5001498), (6, 3334332), (8, 2500749), (9, 2222888), (12, 1667166), (18, 1111444), (24, 833583), (36, 555722), (72, 277861), (139, 143928), (278, 71964), (417, 47976), (556, 35982), (834, 23988), (1112, 17991), (1251, 15992), (1668, 11994), (1999, 10008), (2502, 7996), (3336, 5997), (3998, 5004)]