77838040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{277993}}^1$

素因数の和:278011

約数の個数: 32

約数和(自身を含む): 200155680

約数和(自身を除く): 122317640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 277993, 555986, 1111972, 1389965, 1945951, 2223944, 2779930, 3891902, 5559860, 7783804, 9729755, 11119720, 15567608, 19459510, 38919020, 77838040]

約数ペア:

[(1, 77838040), (2, 38919020), (4, 19459510), (5, 15567608), (7, 11119720), (8, 9729755), (10, 7783804), (14, 5559860), (20, 3891902), (28, 2779930), (35, 2223944), (40, 1945951), (56, 1389965), (70, 1111972), (140, 555986), (280, 277993)]