19219280

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{151}}^1$

素因数の和:244

約数の個数: 80

約数和(自身を含む): 47270784

約数和(自身を除く): 28051504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 43, 74, 80, 86, 148, 151, 172, 185, 215, 296, 302, 344, 370, 430, 592, 604, 688, 740, 755, 860, 1208, 1480, 1510, 1591, 1720, 2416, 2960, 3020, 3182, 3440, 5587, 6040, 6364, 6493, 7955, 11174, 12080, 12728, 12986, 15910, 22348, 25456, 25972, 27935, 31820, 32465, 44696, 51944, 55870, 63640, 64930, 89392, 103888, 111740, 127280, 129860, 223480, 240241, 259720, 446960, 480482, 519440, 960964, 1201205, 1921928, 2402410, 3843856, 4804820, 9609640, 19219280]

約数ペア:

[(1, 19219280), (2, 9609640), (4, 4804820), (5, 3843856), (8, 2402410), (10, 1921928), (16, 1201205), (20, 960964), (37, 519440), (40, 480482), (43, 446960), (74, 259720), (80, 240241), (86, 223480), (148, 129860), (151, 127280), (172, 111740), (185, 103888), (215, 89392), (296, 64930), (302, 63640), (344, 55870), (370, 51944), (430, 44696), (592, 32465), (604, 31820), (688, 27935), (740, 25972), (755, 25456), (860, 22348), (1208, 15910), (1480, 12986), (1510, 12728), (1591, 12080), (1720, 11174), (2416, 7955), (2960, 6493), (3020, 6364), (3182, 6040), (3440, 5587)]