21954280

素因数分解:

$2^3\times 5^1\times {\mathrm{457}}^1\times {\mathrm{1201}}^1$

素因数の和:1669

約数の個数: 32

約数和(自身を含む): 49546440

約数和(自身を除く): 27592160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 457, 914, 1201, 1828, 2285, 2402, 3656, 4570, 4804, 6005, 9140, 9608, 12010, 18280, 24020, 48040, 548857, 1097714, 2195428, 2744285, 4390856, 5488570, 10977140, 21954280]

約数ペア:

[(1, 21954280), (2, 10977140), (4, 5488570), (5, 4390856), (8, 2744285), (10, 2195428), (20, 1097714), (40, 548857), (457, 48040), (914, 24020), (1201, 18280), (1828, 12010), (2285, 9608), (2402, 9140), (3656, 6005), (4570, 4804)]