16823320

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{9781}}^1$

素因数の和:9835

約数の個数: 32

約数和(自身を含む): 38736720

約数和(自身を除く): 21913400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 9781, 19562, 39124, 48905, 78248, 97810, 195620, 391240, 420583, 841166, 1682332, 2102915, 3364664, 4205830, 8411660, 16823320]

約数ペア:

[(1, 16823320), (2, 8411660), (4, 4205830), (5, 3364664), (8, 2102915), (10, 1682332), (20, 841166), (40, 420583), (43, 391240), (86, 195620), (172, 97810), (215, 78248), (344, 48905), (430, 39124), (860, 19562), (1720, 9781)]