80905160

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{288947}}^1$

素因数の和:288965

約数の個数: 32

約数和(自身を含む): 208042560

約数和(自身を除く): 127137400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 288947, 577894, 1155788, 1444735, 2022629, 2311576, 2889470, 4045258, 5778940, 8090516, 10113145, 11557880, 16181032, 20226290, 40452580, 80905160]

約数ペア:

[(1, 80905160), (2, 40452580), (4, 20226290), (5, 16181032), (7, 11557880), (8, 10113145), (10, 8090516), (14, 5778940), (20, 4045258), (28, 2889470), (35, 2311576), (40, 2022629), (56, 1444735), (70, 1155788), (140, 577894), (280, 288947)]