28498640

素因数分解:

$2^4\times 5^1\times {\mathrm{157}}^1\times {\mathrm{2269}}^1$

素因数の和:2439

約数の個数: 40

約数和(自身を含む): 66710760

約数和(自身を除く): 38212120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 157, 314, 628, 785, 1256, 1570, 2269, 2512, 3140, 4538, 6280, 9076, 11345, 12560, 18152, 22690, 36304, 45380, 90760, 181520, 356233, 712466, 1424932, 1781165, 2849864, 3562330, 5699728, 7124660, 14249320, 28498640]

約数ペア:

[(1, 28498640), (2, 14249320), (4, 7124660), (5, 5699728), (8, 3562330), (10, 2849864), (16, 1781165), (20, 1424932), (40, 712466), (80, 356233), (157, 181520), (314, 90760), (628, 45380), (785, 36304), (1256, 22690), (1570, 18152), (2269, 12560), (2512, 11345), (3140, 9076), (4538, 6280)]