27917320

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{16231}}^1$

素因数の和:16285

約数の個数: 32

約数和(自身を含む): 64278720

約数和(自身を除く): 36361400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 16231, 32462, 64924, 81155, 129848, 162310, 324620, 649240, 697933, 1395866, 2791732, 3489665, 5583464, 6979330, 13958660, 27917320]

約数ペア:

[(1, 27917320), (2, 13958660), (4, 6979330), (5, 5583464), (8, 3489665), (10, 2791732), (20, 1395866), (40, 697933), (43, 649240), (86, 324620), (172, 162310), (215, 129848), (344, 81155), (430, 64924), (860, 32462), (1720, 16231)]