201999970

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{284507}}^1$

素因数の和:284585

約数の個数: 16

約数和(自身を含む): 368722368

約数和(自身を除く): 166722398

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 284507, 569014, 1422535, 2845070, 20199997, 40399994, 100999985, 201999970]

約数ペア:

[(1, 201999970), (2, 100999985), (5, 40399994), (10, 20199997), (71, 2845070), (142, 1422535), (355, 569014), (710, 284507)]