19320520

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{6803}}^1$

素因数の和:6885

約数の個数: 32

約数和(自身を含む): 44089920

約数和(自身を除く): 24769400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 6803, 13606, 27212, 34015, 54424, 68030, 136060, 272120, 483013, 966026, 1932052, 2415065, 3864104, 4830130, 9660260, 19320520]

約数ペア:

[(1, 19320520), (2, 9660260), (4, 4830130), (5, 3864104), (8, 2415065), (10, 1932052), (20, 966026), (40, 483013), (71, 272120), (142, 136060), (284, 68030), (355, 54424), (568, 34015), (710, 27212), (1420, 13606), (2840, 6803)]