28037720

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{16301}}^1$

素因数の和:16355

約数の個数: 32

約数和(自身を含む): 64555920

約数和(自身を除く): 36518200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 16301, 32602, 65204, 81505, 130408, 163010, 326020, 652040, 700943, 1401886, 2803772, 3504715, 5607544, 7009430, 14018860, 28037720]

約数ペア:

[(1, 28037720), (2, 14018860), (4, 7009430), (5, 5607544), (8, 3504715), (10, 2803772), (20, 1401886), (40, 700943), (43, 652040), (86, 326020), (172, 163010), (215, 130408), (344, 81505), (430, 65204), (860, 32602), (1720, 16301)]