980920

素因数分解:

$2^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{179}}^1$

素因数の和:327

約数の個数: 32

約数和(自身を含む): 2235600

約数和(自身を除く): 1254680

約数列:

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

約数ペア:

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