686943920

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{15361}}^1$

素因数の和:15430

約数の個数: 80

約数和(自身を含む): 1760116512

約数和(自身を除く): 1073172592

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 43, 52, 65, 80, 86, 104, 130, 172, 208, 215, 260, 344, 430, 520, 559, 688, 860, 1040, 1118, 1720, 2236, 2795, 3440, 4472, 5590, 8944, 11180, 15361, 22360, 30722, 44720, 61444, 76805, 122888, 153610, 199693, 245776, 307220, 399386, 614440, 660523, 798772, 998465, 1228880, 1321046, 1597544, 1996930, 2642092, 3195088, 3302615, 3993860, 5284184, 6605230, 7987720, 8586799, 10568368, 13210460, 15975440, 17173598, 26420920, 34347196, 42933995, 52841840, 68694392, 85867990, 137388784, 171735980, 343471960, 686943920]

約数ペア:

[(1, 686943920), (2, 343471960), (4, 171735980), (5, 137388784), (8, 85867990), (10, 68694392), (13, 52841840), (16, 42933995), (20, 34347196), (26, 26420920), (40, 17173598), (43, 15975440), (52, 13210460), (65, 10568368), (80, 8586799), (86, 7987720), (104, 6605230), (130, 5284184), (172, 3993860), (208, 3302615), (215, 3195088), (260, 2642092), (344, 1996930), (430, 1597544), (520, 1321046), (559, 1228880), (688, 998465), (860, 798772), (1040, 660523), (1118, 614440), (1720, 399386), (2236, 307220), (2795, 245776), (3440, 199693), (4472, 153610), (5590, 122888), (8944, 76805), (11180, 61444), (15361, 44720), (22360, 30722)]