8064400

素因数分解:

$2^4\times 5^2\times {\mathrm{20161}}^1$

素因数の和:20179

約数の個数: 30

約数和(自身を含む): 19375682

約数和(自身を除く): 11311282

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 20161, 40322, 80644, 100805, 161288, 201610, 322576, 403220, 504025, 806440, 1008050, 1612880, 2016100, 4032200, 8064400]

約数ペア:

[(1, 8064400), (2, 4032200), (4, 2016100), (5, 1612880), (8, 1008050), (10, 806440), (16, 504025), (20, 403220), (25, 322576), (40, 201610), (50, 161288), (80, 100805), (100, 80644), (200, 40322), (400, 20161)]