7778680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2137}}^1$

素因数の和:2168

約数の個数: 64

約数和(自身を含む): 21551040

約数和(自身を除く): 13772360

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 260, 280, 364, 455, 520, 728, 910, 1820, 2137, 3640, 4274, 8548, 10685, 14959, 17096, 21370, 27781, 29918, 42740, 55562, 59836, 74795, 85480, 111124, 119672, 138905, 149590, 194467, 222248, 277810, 299180, 388934, 555620, 598360, 777868, 972335, 1111240, 1555736, 1944670, 3889340, 7778680]

約数ペア:

[(1, 7778680), (2, 3889340), (4, 1944670), (5, 1555736), (7, 1111240), (8, 972335), (10, 777868), (13, 598360), (14, 555620), (20, 388934), (26, 299180), (28, 277810), (35, 222248), (40, 194467), (52, 149590), (56, 138905), (65, 119672), (70, 111124), (91, 85480), (104, 74795), (130, 59836), (140, 55562), (182, 42740), (260, 29918), (280, 27781), (364, 21370), (455, 17096), (520, 14959), (728, 10685), (910, 8548), (1820, 4274), (2137, 3640)]