28460840

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{16547}}^1$

素因数の和:16601

約数の個数: 32

約数和(自身を含む): 65530080

約数和(自身を除く): 37069240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 16547, 33094, 66188, 82735, 132376, 165470, 330940, 661880, 711521, 1423042, 2846084, 3557605, 5692168, 7115210, 14230420, 28460840]

約数ペア:

[(1, 28460840), (2, 14230420), (4, 7115210), (5, 5692168), (8, 3557605), (10, 2846084), (20, 1423042), (40, 711521), (43, 661880), (86, 330940), (172, 165470), (215, 132376), (344, 82735), (430, 66188), (860, 33094), (1720, 16547)]