81601120

素因数分解:

$2^5\times 5^1\times {\mathrm{510007}}^1$

素因数の和:510022

約数の個数: 24

約数和(自身を含む): 192783024

約数和(自身を除く): 111181904

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 510007, 1020014, 2040028, 2550035, 4080056, 5100070, 8160112, 10200140, 16320224, 20400280, 40800560, 81601120]

約数ペア:

[(1, 81601120), (2, 40800560), (4, 20400280), (5, 16320224), (8, 10200140), (10, 8160112), (16, 5100070), (20, 4080056), (32, 2550035), (40, 2040028), (80, 1020014), (160, 510007)]