2454440

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1427}}^1$

素因数の和:1481

約数の個数: 32

約数和(自身を含む): 5654880

約数和(自身を除く): 3200440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1427, 1720, 2854, 5708, 7135, 11416, 14270, 28540, 57080, 61361, 122722, 245444, 306805, 490888, 613610, 1227220, 2454440]

約数ペア:

[(1, 2454440), (2, 1227220), (4, 613610), (5, 490888), (8, 306805), (10, 245444), (20, 122722), (40, 61361), (43, 57080), (86, 28540), (172, 14270), (215, 11416), (344, 7135), (430, 5708), (860, 2854), (1427, 1720)]