129640840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{463003}}^1$

素因数の和:463021

約数の個数: 32

約数和(自身を含む): 333362880

約数和(自身を除く): 203722040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 463003, 926006, 1852012, 2315015, 3241021, 3704024, 4630030, 6482042, 9260060, 12964084, 16205105, 18520120, 25928168, 32410210, 64820420, 129640840]

約数ペア:

[(1, 129640840), (2, 64820420), (4, 32410210), (5, 25928168), (7, 18520120), (8, 16205105), (10, 12964084), (14, 9260060), (20, 6482042), (28, 4630030), (35, 3704024), (40, 3241021), (56, 2315015), (70, 1852012), (140, 926006), (280, 463003)]