2018788720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{26591}}^1$

素因数の和:26690

約数の個数: 80

約数和(自身を含む): 5124172032

約数和(自身を除く): 3105383312

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 73, 80, 104, 130, 146, 208, 260, 292, 365, 520, 584, 730, 949, 1040, 1168, 1460, 1898, 2920, 3796, 4745, 5840, 7592, 9490, 15184, 18980, 26591, 37960, 53182, 75920, 106364, 132955, 212728, 265910, 345683, 425456, 531820, 691366, 1063640, 1382732, 1728415, 1941143, 2127280, 2765464, 3456830, 3882286, 5530928, 6913660, 7764572, 9705715, 13827320, 15529144, 19411430, 25234859, 27654640, 31058288, 38822860, 50469718, 77645720, 100939436, 126174295, 155291440, 201878872, 252348590, 403757744, 504697180, 1009394360, 2018788720]

約数ペア:

[(1, 2018788720), (2, 1009394360), (4, 504697180), (5, 403757744), (8, 252348590), (10, 201878872), (13, 155291440), (16, 126174295), (20, 100939436), (26, 77645720), (40, 50469718), (52, 38822860), (65, 31058288), (73, 27654640), (80, 25234859), (104, 19411430), (130, 15529144), (146, 13827320), (208, 9705715), (260, 7764572), (292, 6913660), (365, 5530928), (520, 3882286), (584, 3456830), (730, 2765464), (949, 2127280), (1040, 1941143), (1168, 1728415), (1460, 1382732), (1898, 1063640), (2920, 691366), (3796, 531820), (4745, 425456), (5840, 345683), (7592, 265910), (9490, 212728), (15184, 132955), (18980, 106364), (26591, 75920), (37960, 53182)]