80917160

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{20029}}^1$

素因数の和:20141

約数の個数: 32

約数和(自身を含む): 183875400

約数和(自身を除く): 102958240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 20029, 40058, 80116, 100145, 160232, 200290, 400580, 801160, 2022929, 4045858, 8091716, 10114645, 16183432, 20229290, 40458580, 80917160]

約数ペア:

[(1, 80917160), (2, 40458580), (4, 20229290), (5, 16183432), (8, 10114645), (10, 8091716), (20, 4045858), (40, 2022929), (101, 801160), (202, 400580), (404, 200290), (505, 160232), (808, 100145), (1010, 80116), (2020, 40058), (4040, 20029)]