28785200

素因数分解:

$2^4\times 5^2\times {\mathrm{71963}}^1$

素因数の和:71981

約数の個数: 30

約数和(自身を含む): 69157404

約数和(自身を除く): 40372204

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 71963, 143926, 287852, 359815, 575704, 719630, 1151408, 1439260, 1799075, 2878520, 3598150, 5757040, 7196300, 14392600, 28785200]

約数ペア:

[(1, 28785200), (2, 14392600), (4, 7196300), (5, 5757040), (8, 3598150), (10, 2878520), (16, 1799075), (20, 1439260), (25, 1151408), (40, 719630), (50, 575704), (80, 359815), (100, 287852), (200, 143926), (400, 71963)]