2617840

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{761}}^1$

素因数の和:817

約数の個数: 40

約数和(自身を含む): 6236208

約数和(自身を除く): 3618368

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 761, 860, 1522, 1720, 3044, 3440, 3805, 6088, 7610, 12176, 15220, 30440, 32723, 60880, 65446, 130892, 163615, 261784, 327230, 523568, 654460, 1308920, 2617840]

約数ペア:

[(1, 2617840), (2, 1308920), (4, 654460), (5, 523568), (8, 327230), (10, 261784), (16, 163615), (20, 130892), (40, 65446), (43, 60880), (80, 32723), (86, 30440), (172, 15220), (215, 12176), (344, 7610), (430, 6088), (688, 3805), (761, 3440), (860, 3044), (1522, 1720)]