20058940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{1249}}^1$

素因数の和:1342

約数の個数: 48

約数和(自身を含む): 46620000

約数和(自身を除く): 26561060

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 73, 110, 146, 220, 292, 365, 730, 803, 1249, 1460, 1606, 2498, 3212, 4015, 4996, 6245, 8030, 12490, 13739, 16060, 24980, 27478, 54956, 68695, 91177, 137390, 182354, 274780, 364708, 455885, 911770, 1002947, 1823540, 2005894, 4011788, 5014735, 10029470, 20058940]

約数ペア:

[(1, 20058940), (2, 10029470), (4, 5014735), (5, 4011788), (10, 2005894), (11, 1823540), (20, 1002947), (22, 911770), (44, 455885), (55, 364708), (73, 274780), (110, 182354), (146, 137390), (220, 91177), (292, 68695), (365, 54956), (730, 27478), (803, 24980), (1249, 16060), (1460, 13739), (1606, 12490), (2498, 8030), (3212, 6245), (4015, 4996)]