197071760

素因数分解:

$2^4\times 5^1\times {\mathrm{137}}^1\times {\mathrm{17981}}^1$

素因数の和:18131

約数の個数: 40

約数和(自身を含む): 461561976

約数和(自身を除く): 264490216

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 137, 274, 548, 685, 1096, 1370, 2192, 2740, 5480, 10960, 17981, 35962, 71924, 89905, 143848, 179810, 287696, 359620, 719240, 1438480, 2463397, 4926794, 9853588, 12316985, 19707176, 24633970, 39414352, 49267940, 98535880, 197071760]

約数ペア:

[(1, 197071760), (2, 98535880), (4, 49267940), (5, 39414352), (8, 24633970), (10, 19707176), (16, 12316985), (20, 9853588), (40, 4926794), (80, 2463397), (137, 1438480), (274, 719240), (548, 359620), (685, 287696), (1096, 179810), (1370, 143848), (2192, 89905), (2740, 71924), (5480, 35962), (10960, 17981)]