1378903905

素因数分解:

$3^4\times 5^1\times {\mathrm{509}}^1\times {\mathrm{6689}}^1$

素因数の和:7215

約数の個数: 40

約数和(自身を含む): 2477039400

約数和(自身を除く): 1098135495

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 509, 1527, 2545, 4581, 6689, 7635, 13743, 20067, 22905, 33445, 41229, 60201, 68715, 100335, 180603, 206145, 301005, 541809, 903015, 2709045, 3404701, 10214103, 17023505, 30642309, 51070515, 91926927, 153211545, 275780781, 459634635, 1378903905]

約数ペア:

[(1, 1378903905), (3, 459634635), (5, 275780781), (9, 153211545), (15, 91926927), (27, 51070515), (45, 30642309), (81, 17023505), (135, 10214103), (405, 3404701), (509, 2709045), (1527, 903015), (2545, 541809), (4581, 301005), (6689, 206145), (7635, 180603), (13743, 100335), (20067, 68715), (22905, 60201), (33445, 41229)]