1387907120

素因数分解:

$2^4\times 5^1\times {\mathrm{17348839}}^1$

素因数の和:17348852

約数の個数: 20

約数和(自身を含む): 3226884240

約数和(自身を除く): 1838977120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 17348839, 34697678, 69395356, 86744195, 138790712, 173488390, 277581424, 346976780, 693953560, 1387907120]

約数ペア:

[(1, 1387907120), (2, 693953560), (4, 346976780), (5, 277581424), (8, 173488390), (10, 138790712), (16, 86744195), (20, 69395356), (40, 34697678), (80, 17348839)]