8474440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{379}}^1$

素因数の和:446

約数の個数: 64

約数和(自身を含む): 21067200

約数和(自身を除く): 12592760

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 43, 52, 65, 86, 104, 130, 172, 215, 260, 344, 379, 430, 520, 559, 758, 860, 1118, 1516, 1720, 1895, 2236, 2795, 3032, 3790, 4472, 4927, 5590, 7580, 9854, 11180, 15160, 16297, 19708, 22360, 24635, 32594, 39416, 49270, 65188, 81485, 98540, 130376, 162970, 197080, 211861, 325940, 423722, 651880, 847444, 1059305, 1694888, 2118610, 4237220, 8474440]

約数ペア:

[(1, 8474440), (2, 4237220), (4, 2118610), (5, 1694888), (8, 1059305), (10, 847444), (13, 651880), (20, 423722), (26, 325940), (40, 211861), (43, 197080), (52, 162970), (65, 130376), (86, 98540), (104, 81485), (130, 65188), (172, 49270), (215, 39416), (260, 32594), (344, 24635), (379, 22360), (430, 19708), (520, 16297), (559, 15160), (758, 11180), (860, 9854), (1118, 7580), (1516, 5590), (1720, 4927), (1895, 4472), (2236, 3790), (2795, 3032)]