20555880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{171299}}^1$

素因数の和:171313

約数の個数: 32

約数和(自身を含む): 61668000

約数和(自身を除く): 41112120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 171299, 342598, 513897, 685196, 856495, 1027794, 1370392, 1712990, 2055588, 2569485, 3425980, 4111176, 5138970, 6851960, 10277940, 20555880]

約数ペア:

[(1, 20555880), (2, 10277940), (3, 6851960), (4, 5138970), (5, 4111176), (6, 3425980), (8, 2569485), (10, 2055588), (12, 1712990), (15, 1370392), (20, 1027794), (24, 856495), (30, 685196), (40, 513897), (60, 342598), (120, 171299)]