199980070

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{645097}}^1$

素因数の和:645135

約数の個数: 16

約数和(自身を含む): 371576448

約数和(自身を除く): 171596378

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 645097, 1290194, 3225485, 6450970, 19998007, 39996014, 99990035, 199980070]

約数ペア:

[(1, 199980070), (2, 99990035), (5, 39996014), (10, 19998007), (31, 6450970), (62, 3225485), (155, 1290194), (310, 645097)]