25484740

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1\times {\mathrm{137}}^1$

素因数の和:348

約数の個数: 48

約数和(自身を含む): 55085184

約数和(自身を除く): 29600444

約数列:

[1, 2, 4, 5, 10, 20, 71, 131, 137, 142, 262, 274, 284, 355, 524, 548, 655, 685, 710, 1310, 1370, 1420, 2620, 2740, 9301, 9727, 17947, 18602, 19454, 35894, 37204, 38908, 46505, 48635, 71788, 89735, 93010, 97270, 179470, 186020, 194540, 358940, 1274237, 2548474, 5096948, 6371185, 12742370, 25484740]

約数ペア:

[(1, 25484740), (2, 12742370), (4, 6371185), (5, 5096948), (10, 2548474), (20, 1274237), (71, 358940), (131, 194540), (137, 186020), (142, 179470), (262, 97270), (274, 93010), (284, 89735), (355, 71788), (524, 48635), (548, 46505), (655, 38908), (685, 37204), (710, 35894), (1310, 19454), (1370, 18602), (1420, 17947), (2620, 9727), (2740, 9301)]