12385720

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{379}}^1$

素因数の和:452

約数の個数: 64

約数和(自身を含む): 30096000

約数和(自身を除く): 17710280

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 43, 76, 86, 95, 152, 172, 190, 215, 344, 379, 380, 430, 758, 760, 817, 860, 1516, 1634, 1720, 1895, 3032, 3268, 3790, 4085, 6536, 7201, 7580, 8170, 14402, 15160, 16297, 16340, 28804, 32594, 32680, 36005, 57608, 65188, 72010, 81485, 130376, 144020, 162970, 288040, 309643, 325940, 619286, 651880, 1238572, 1548215, 2477144, 3096430, 6192860, 12385720]

約数ペア:

[(1, 12385720), (2, 6192860), (4, 3096430), (5, 2477144), (8, 1548215), (10, 1238572), (19, 651880), (20, 619286), (38, 325940), (40, 309643), (43, 288040), (76, 162970), (86, 144020), (95, 130376), (152, 81485), (172, 72010), (190, 65188), (215, 57608), (344, 36005), (379, 32680), (380, 32594), (430, 28804), (758, 16340), (760, 16297), (817, 15160), (860, 14402), (1516, 8170), (1634, 7580), (1720, 7201), (1895, 6536), (3032, 4085), (3268, 3790)]