20406312

素因数分解:

$2^3\times 3^2\times {\mathrm{139}}^1\times {\mathrm{2039}}^1$

素因数の和:2190

約数の個数: 48

約数和(自身を含む): 55692000

約数和(自身を除く): 35285688

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 139, 278, 417, 556, 834, 1112, 1251, 1668, 2039, 2502, 3336, 4078, 5004, 6117, 8156, 10008, 12234, 16312, 18351, 24468, 36702, 48936, 73404, 146808, 283421, 566842, 850263, 1133684, 1700526, 2267368, 2550789, 3401052, 5101578, 6802104, 10203156, 20406312]

約数ペア:

[(1, 20406312), (2, 10203156), (3, 6802104), (4, 5101578), (6, 3401052), (8, 2550789), (9, 2267368), (12, 1700526), (18, 1133684), (24, 850263), (36, 566842), (72, 283421), (139, 146808), (278, 73404), (417, 48936), (556, 36702), (834, 24468), (1112, 18351), (1251, 16312), (1668, 12234), (2039, 10008), (2502, 8156), (3336, 6117), (4078, 5004)]