81033280

素因数分解:

$2^6\times 5^1\times {\mathrm{253229}}^1$

素因数の和:253246

約数の個数: 28

約数和(自身を含む): 192961260

約数和(自身を除く): 111927980

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 253229, 506458, 1012916, 1266145, 2025832, 2532290, 4051664, 5064580, 8103328, 10129160, 16206656, 20258320, 40516640, 81033280]

約数ペア:

[(1, 81033280), (2, 40516640), (4, 20258320), (5, 16206656), (8, 10129160), (10, 8103328), (16, 5064580), (20, 4051664), (32, 2532290), (40, 2025832), (64, 1266145), (80, 1012916), (160, 506458), (320, 253229)]