19800135

素因数分解:

$3^2\times 5^1\times {\mathrm{251}}^1\times {\mathrm{1753}}^1$

素因数の和:2015

約数の個数: 24

約数和(自身を含む): 34476624

約数和(自身を除く): 14676489

約数列:

[1, 3, 5, 9, 15, 45, 251, 753, 1255, 1753, 2259, 3765, 5259, 8765, 11295, 15777, 26295, 78885, 440003, 1320009, 2200015, 3960027, 6600045, 19800135]

約数ペア:

[(1, 19800135), (3, 6600045), (5, 3960027), (9, 2200015), (15, 1320009), (45, 440003), (251, 78885), (753, 26295), (1255, 15777), (1753, 11295), (2259, 8765), (3765, 5259)]