15678980

素因数分解:

$2^2\times 5^1\times {\mathrm{419}}^1\times {\mathrm{1871}}^1$

素因数の和:2299

約数の個数: 24

約数和(自身を含む): 33022080

約数和(自身を除く): 17343100

約数列:

[1, 2, 4, 5, 10, 20, 419, 838, 1676, 1871, 2095, 3742, 4190, 7484, 8380, 9355, 18710, 37420, 783949, 1567898, 3135796, 3919745, 7839490, 15678980]

約数ペア:

[(1, 15678980), (2, 7839490), (4, 3919745), (5, 3135796), (10, 1567898), (20, 783949), (419, 37420), (838, 18710), (1676, 9355), (1871, 8380), (2095, 7484), (3742, 4190)]