19188320

素因数分解:

$2^5\times 5^1\times {\mathrm{43}}^1\times {\mathrm{2789}}^1$

素因数の和:2847

約数の個数: 48

約数和(自身を含む): 46403280

約数和(自身を除く): 27214960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 80, 86, 160, 172, 215, 344, 430, 688, 860, 1376, 1720, 2789, 3440, 5578, 6880, 11156, 13945, 22312, 27890, 44624, 55780, 89248, 111560, 119927, 223120, 239854, 446240, 479708, 599635, 959416, 1199270, 1918832, 2398540, 3837664, 4797080, 9594160, 19188320]

約数ペア:

[(1, 19188320), (2, 9594160), (4, 4797080), (5, 3837664), (8, 2398540), (10, 1918832), (16, 1199270), (20, 959416), (32, 599635), (40, 479708), (43, 446240), (80, 239854), (86, 223120), (160, 119927), (172, 111560), (215, 89248), (344, 55780), (430, 44624), (688, 27890), (860, 22312), (1376, 13945), (1720, 11156), (2789, 6880), (3440, 5578)]