1961840

素因数分解:

$2^4\times 5^1\times {\mathrm{137}}^1\times {\mathrm{179}}^1$

素因数の和:329

約数の個数: 40

約数和(自身を含む): 4620240

約数和(自身を除く): 2658400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 137, 179, 274, 358, 548, 685, 716, 895, 1096, 1370, 1432, 1790, 2192, 2740, 2864, 3580, 5480, 7160, 10960, 14320, 24523, 49046, 98092, 122615, 196184, 245230, 392368, 490460, 980920, 1961840]

約数ペア:

[(1, 1961840), (2, 980920), (4, 490460), (5, 392368), (8, 245230), (10, 196184), (16, 122615), (20, 98092), (40, 49046), (80, 24523), (137, 14320), (179, 10960), (274, 7160), (358, 5480), (548, 3580), (685, 2864), (716, 2740), (895, 2192), (1096, 1790), (1370, 1432)]