81189970

素因数分解:

$2^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{83701}}^1$

素因数の和:83805

約数の個数: 16

約数和(自身を含む): 147650328

約数和(自身を除く): 66460358

約数列:

[1, 2, 5, 10, 97, 194, 485, 970, 83701, 167402, 418505, 837010, 8118997, 16237994, 40594985, 81189970]

約数ペア:

[(1, 81189970), (2, 40594985), (5, 16237994), (10, 8118997), (97, 837010), (194, 418505), (485, 167402), (970, 83701)]