77959120

素因数分解:

$2^4\times 5^1\times {\mathrm{974489}}^1$

素因数の和:974502

約数の個数: 20

約数和(自身を含む): 181255140

約数和(自身を除く): 103296020

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 974489, 1948978, 3897956, 4872445, 7795912, 9744890, 15591824, 19489780, 38979560, 77959120]

約数ペア:

[(1, 77959120), (2, 38979560), (4, 19489780), (5, 15591824), (8, 9744890), (10, 7795912), (16, 4872445), (20, 3897956), (40, 1948978), (80, 974489)]