218129580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{647}}^1\times {\mathrm{1873}}^1$

素因数の和:2535

約数の個数: 72

約数和(自身を含む): 663036192

約数和(自身を除く): 444906612

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 647, 1294, 1873, 1941, 2588, 3235, 3746, 3882, 5619, 5823, 6470, 7492, 7764, 9365, 9705, 11238, 11646, 12940, 16857, 18730, 19410, 22476, 23292, 28095, 29115, 33714, 37460, 38820, 56190, 58230, 67428, 84285, 112380, 116460, 168570, 337140, 1211831, 2423662, 3635493, 4847324, 6059155, 7270986, 10906479, 12118310, 14541972, 18177465, 21812958, 24236620, 36354930, 43625916, 54532395, 72709860, 109064790, 218129580]

約数ペア:

[(1, 218129580), (2, 109064790), (3, 72709860), (4, 54532395), (5, 43625916), (6, 36354930), (9, 24236620), (10, 21812958), (12, 18177465), (15, 14541972), (18, 12118310), (20, 10906479), (30, 7270986), (36, 6059155), (45, 4847324), (60, 3635493), (90, 2423662), (180, 1211831), (647, 337140), (1294, 168570), (1873, 116460), (1941, 112380), (2588, 84285), (3235, 67428), (3746, 58230), (3882, 56190), (5619, 38820), (5823, 37460), (6470, 33714), (7492, 29115), (7764, 28095), (9365, 23292), (9705, 22476), (11238, 19410), (11646, 18730), (12940, 16857)]