154480

素因数分解:

$2^4\times 5^1\times {\mathrm{1931}}^1$

素因数の和:1944

約数の個数: 20

約数和(自身を含む): 359352

約数和(自身を除く): 204872

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1931, 3862, 7724, 9655, 15448, 19310, 30896, 38620, 77240, 154480]

約数ペア:

[(1, 154480), (2, 77240), (4, 38620), (5, 30896), (8, 19310), (10, 15448), (16, 9655), (20, 7724), (40, 3862), (80, 1931)]