20161920105

素因数分解:

$3^2\times 5^1\times {\mathrm{443}}^1\times {\mathrm{509}}^1\times {\mathrm{1987}}^1$

素因数の和:2950

約数の個数: 48

約数和(自身を含む): 35112692160

約数和(自身を除く): 14950772055

約数列:

[1, 3, 5, 9, 15, 45, 443, 509, 1329, 1527, 1987, 2215, 2545, 3987, 4581, 5961, 6645, 7635, 9935, 17883, 19935, 22905, 29805, 89415, 225487, 676461, 880241, 1011383, 1127435, 2029383, 2640723, 3034149, 3382305, 4401205, 5056915, 7922169, 9102447, 10146915, 13203615, 15170745, 39610845, 45512235, 448042669, 1344128007, 2240213345, 4032384021, 6720640035, 20161920105]

約数ペア:

[(1, 20161920105), (3, 6720640035), (5, 4032384021), (9, 2240213345), (15, 1344128007), (45, 448042669), (443, 45512235), (509, 39610845), (1329, 15170745), (1527, 13203615), (1987, 10146915), (2215, 9102447), (2545, 7922169), (3987, 5056915), (4581, 4401205), (5961, 3382305), (6645, 3034149), (7635, 2640723), (9935, 2029383), (17883, 1127435), (19935, 1011383), (22905, 880241), (29805, 676461), (89415, 225487)]