80654840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{288053}}^1$

素因数の和:288071

約数の個数: 32

約数和(自身を含む): 207398880

約数和(自身を除く): 126744040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 288053, 576106, 1152212, 1440265, 2016371, 2304424, 2880530, 4032742, 5761060, 8065484, 10081855, 11522120, 16130968, 20163710, 40327420, 80654840]

約数ペア:

[(1, 80654840), (2, 40327420), (4, 20163710), (5, 16130968), (7, 11522120), (8, 10081855), (10, 8065484), (14, 5761060), (20, 4032742), (28, 2880530), (35, 2304424), (40, 2016371), (56, 1440265), (70, 1152212), (140, 576106), (280, 288053)]