80715160

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{19979}}^1$

素因数の和:20091

約数の個数: 32

約数和(自身を含む): 183416400

約数和(自身を除く): 102701240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 19979, 39958, 79916, 99895, 159832, 199790, 399580, 799160, 2017879, 4035758, 8071516, 10089395, 16143032, 20178790, 40357580, 80715160]

約数ペア:

[(1, 80715160), (2, 40357580), (4, 20178790), (5, 16143032), (8, 10089395), (10, 8071516), (20, 4035758), (40, 2017879), (101, 799160), (202, 399580), (404, 199790), (505, 159832), (808, 99895), (1010, 79916), (2020, 39958), (4040, 19979)]