19680596

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{193}}^1$

素因数の和:300

約数の個数: 48

約数和(自身を含む): 39012624

約数和(自身を除く): 19332028

約数列:

[1, 2, 4, 13, 26, 37, 52, 53, 74, 106, 148, 193, 212, 386, 481, 689, 772, 962, 1378, 1924, 1961, 2509, 2756, 3922, 5018, 7141, 7844, 10036, 10229, 14282, 20458, 25493, 28564, 40916, 50986, 92833, 101972, 132977, 185666, 265954, 371332, 378473, 531908, 756946, 1513892, 4920149, 9840298, 19680596]

約数ペア:

[(1, 19680596), (2, 9840298), (4, 4920149), (13, 1513892), (26, 756946), (37, 531908), (52, 378473), (53, 371332), (74, 265954), (106, 185666), (148, 132977), (193, 101972), (212, 92833), (386, 50986), (481, 40916), (689, 28564), (772, 25493), (962, 20458), (1378, 14282), (1924, 10229), (1961, 10036), (2509, 7844), (2756, 7141), (3922, 5018)]