1288406320

素因数分解:

$2^4\times 5^1\times {\mathrm{1301}}^1\times {\mathrm{12379}}^1$

素因数の和:13693

約数の個数: 40

約数和(自身を含む): 2998089360

約数和(自身を除く): 1709683040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1301, 2602, 5204, 6505, 10408, 12379, 13010, 20816, 24758, 26020, 49516, 52040, 61895, 99032, 104080, 123790, 198064, 247580, 495160, 990320, 16105079, 32210158, 64420316, 80525395, 128840632, 161050790, 257681264, 322101580, 644203160, 1288406320]

約数ペア:

[(1, 1288406320), (2, 644203160), (4, 322101580), (5, 257681264), (8, 161050790), (10, 128840632), (16, 80525395), (20, 64420316), (40, 32210158), (80, 16105079), (1301, 990320), (2602, 495160), (5204, 247580), (6505, 198064), (10408, 123790), (12379, 104080), (13010, 99032), (20816, 61895), (24758, 52040), (26020, 49516)]