28665040

素因数分解:

$2^4\times 5^1\times {\mathrm{358313}}^1$

素因数の和:358326

約数の個数: 20

約数和(自身を含む): 66646404

約数和(自身を除く): 37981364

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 358313, 716626, 1433252, 1791565, 2866504, 3583130, 5733008, 7166260, 14332520, 28665040]

約数ペア:

[(1, 28665040), (2, 14332520), (4, 7166260), (5, 5733008), (8, 3583130), (10, 2866504), (16, 1791565), (20, 1433252), (40, 716626), (80, 358313)]