200720955

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{311}}^1\times {\mathrm{2531}}^1$

素因数の和:2867

約数の個数: 32

約数和(自身を含む): 341273088

約数和(自身を除く): 140552133

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 311, 933, 1555, 2531, 4665, 5287, 7593, 12655, 15861, 26435, 37965, 43027, 79305, 129081, 215135, 645405, 787141, 2361423, 3935705, 11807115, 13381397, 40144191, 66906985, 200720955]

約数ペア:

[(1, 200720955), (3, 66906985), (5, 40144191), (15, 13381397), (17, 11807115), (51, 3935705), (85, 2361423), (255, 787141), (311, 645405), (933, 215135), (1555, 129081), (2531, 79305), (4665, 43027), (5287, 37965), (7593, 26435), (12655, 15861)]