29981320

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{17431}}^1$

素因数の和:17485

約数の個数: 32

約数和(自身を含む): 69030720

約数和(自身を除く): 39049400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 17431, 34862, 69724, 87155, 139448, 174310, 348620, 697240, 749533, 1499066, 2998132, 3747665, 5996264, 7495330, 14990660, 29981320]

約数ペア:

[(1, 29981320), (2, 14990660), (4, 7495330), (5, 5996264), (8, 3747665), (10, 2998132), (20, 1499066), (40, 749533), (43, 697240), (86, 348620), (172, 174310), (215, 139448), (344, 87155), (430, 69724), (860, 34862), (1720, 17431)]