16678840

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{9697}}^1$

素因数の和:9751

約数の個数: 32

約数和(自身を含む): 38404080

約数和(自身を除く): 21725240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 9697, 19394, 38788, 48485, 77576, 96970, 193940, 387880, 416971, 833942, 1667884, 2084855, 3335768, 4169710, 8339420, 16678840]

約数ペア:

[(1, 16678840), (2, 8339420), (4, 4169710), (5, 3335768), (8, 2084855), (10, 1667884), (20, 833942), (40, 416971), (43, 387880), (86, 193940), (172, 96970), (215, 77576), (344, 48485), (430, 38788), (860, 19394), (1720, 9697)]