81903620

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{240893}}^1$

素因数の和:240919

約数の個数: 24

約数和(自身を含む): 182115864

約数和(自身を除く): 100212244

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 240893, 481786, 963572, 1204465, 2408930, 4095181, 4817860, 8190362, 16380724, 20475905, 40951810, 81903620]

約数ペア:

[(1, 81903620), (2, 40951810), (4, 20475905), (5, 16380724), (10, 8190362), (17, 4817860), (20, 4095181), (34, 2408930), (68, 1204465), (85, 963572), (170, 481786), (340, 240893)]