20243120

素因数分解:

$2^4\times 5^1\times {\mathrm{137}}^1\times {\mathrm{1847}}^1$

素因数の和:1997

約数の個数: 40

約数和(自身を含む): 47434464

約数和(自身を除く): 27191344

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 137, 274, 548, 685, 1096, 1370, 1847, 2192, 2740, 3694, 5480, 7388, 9235, 10960, 14776, 18470, 29552, 36940, 73880, 147760, 253039, 506078, 1012156, 1265195, 2024312, 2530390, 4048624, 5060780, 10121560, 20243120]

約数ペア:

[(1, 20243120), (2, 10121560), (4, 5060780), (5, 4048624), (8, 2530390), (10, 2024312), (16, 1265195), (20, 1012156), (40, 506078), (80, 253039), (137, 147760), (274, 73880), (548, 36940), (685, 29552), (1096, 18470), (1370, 14776), (1847, 10960), (2192, 9235), (2740, 7388), (3694, 5480)]