78505987

素因数分解:

$7^2\times {\mathrm{29}}^1\times {\mathrm{101}}^1\times {\mathrm{547}}^1$

素因数の和:691

約数の個数: 24

約数和(自身を含む): 95582160

約数和(自身を除く): 17076173

約数列:

[1, 7, 29, 49, 101, 203, 547, 707, 1421, 2929, 3829, 4949, 15863, 20503, 26803, 55247, 111041, 143521, 386729, 777287, 1602163, 2707103, 11215141, 78505987]

約数ペア:

[(1, 78505987), (7, 11215141), (29, 2707103), (49, 1602163), (101, 777287), (203, 386729), (547, 143521), (707, 111041), (1421, 55247), (2929, 26803), (3829, 20503), (4949, 15863)]