18741920

素因数分解:

$2^5\times 5^1\times {\mathrm{41}}^1\times {\mathrm{2857}}^1$

素因数の和:2913

約数の個数: 48

約数和(自身を含む): 45373608

約数和(自身を除く): 26631688

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 80, 82, 160, 164, 205, 328, 410, 656, 820, 1312, 1640, 2857, 3280, 5714, 6560, 11428, 14285, 22856, 28570, 45712, 57140, 91424, 114280, 117137, 228560, 234274, 457120, 468548, 585685, 937096, 1171370, 1874192, 2342740, 3748384, 4685480, 9370960, 18741920]

約数ペア:

[(1, 18741920), (2, 9370960), (4, 4685480), (5, 3748384), (8, 2342740), (10, 1874192), (16, 1171370), (20, 937096), (32, 585685), (40, 468548), (41, 457120), (80, 234274), (82, 228560), (160, 117137), (164, 114280), (205, 91424), (328, 57140), (410, 45712), (656, 28570), (820, 22856), (1312, 14285), (1640, 11428), (2857, 6560), (3280, 5714)]