20072195

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{419}}^1$

素因数の和:515

約数の個数: 32

約数和(自身を含む): 28788480

約数和(自身を除く): 8716285

約数列:

[1, 5, 11, 13, 55, 65, 67, 143, 335, 419, 715, 737, 871, 2095, 3685, 4355, 4609, 5447, 9581, 23045, 27235, 28073, 47905, 59917, 140365, 299585, 308803, 364949, 1544015, 1824745, 4014439, 20072195]

約数ペア:

[(1, 20072195), (5, 4014439), (11, 1824745), (13, 1544015), (55, 364949), (65, 308803), (67, 299585), (143, 140365), (335, 59917), (419, 47905), (715, 28073), (737, 27235), (871, 23045), (2095, 9581), (3685, 5447), (4355, 4609)]