1721680240

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{45887}}^1$

素因数の和:45974

約数の個数: 80

約数和(自身を含む): 4643131392

約数和(自身を除く): 2921451152

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 67, 70, 80, 112, 134, 140, 268, 280, 335, 469, 536, 560, 670, 938, 1072, 1340, 1876, 2345, 2680, 3752, 4690, 5360, 7504, 9380, 18760, 37520, 45887, 91774, 183548, 229435, 321209, 367096, 458870, 642418, 734192, 917740, 1284836, 1606045, 1835480, 2569672, 3074429, 3212090, 3670960, 5139344, 6148858, 6424180, 12297716, 12848360, 15372145, 21521003, 24595432, 25696720, 30744290, 43042006, 49190864, 61488580, 86084012, 107605015, 122977160, 172168024, 215210030, 245954320, 344336048, 430420060, 860840120, 1721680240]

約数ペア:

[(1, 1721680240), (2, 860840120), (4, 430420060), (5, 344336048), (7, 245954320), (8, 215210030), (10, 172168024), (14, 122977160), (16, 107605015), (20, 86084012), (28, 61488580), (35, 49190864), (40, 43042006), (56, 30744290), (67, 25696720), (70, 24595432), (80, 21521003), (112, 15372145), (134, 12848360), (140, 12297716), (268, 6424180), (280, 6148858), (335, 5139344), (469, 3670960), (536, 3212090), (560, 3074429), (670, 2569672), (938, 1835480), (1072, 1606045), (1340, 1284836), (1876, 917740), (2345, 734192), (2680, 642418), (3752, 458870), (4690, 367096), (5360, 321209), (7504, 229435), (9380, 183548), (18760, 91774), (37520, 45887)]