2820825

素因数分解:

$3^4\times 5^2\times 7^1\times {\mathrm{199}}^1$

素因数の和:228

約数の個数: 60

約数和(自身を含む): 6001600

約数和(自身を除く): 3180775

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 27, 35, 45, 63, 75, 81, 105, 135, 175, 189, 199, 225, 315, 405, 525, 567, 597, 675, 945, 995, 1393, 1575, 1791, 2025, 2835, 2985, 4179, 4725, 4975, 5373, 6965, 8955, 12537, 14175, 14925, 16119, 20895, 26865, 34825, 37611, 44775, 62685, 80595, 104475, 112833, 134325, 188055, 313425, 402975, 564165, 940275, 2820825]

約数ペア:

[(1, 2820825), (3, 940275), (5, 564165), (7, 402975), (9, 313425), (15, 188055), (21, 134325), (25, 112833), (27, 104475), (35, 80595), (45, 62685), (63, 44775), (75, 37611), (81, 34825), (105, 26865), (135, 20895), (175, 16119), (189, 14925), (199, 14175), (225, 12537), (315, 8955), (405, 6965), (525, 5373), (567, 4975), (597, 4725), (675, 4179), (945, 2985), (995, 2835), (1393, 2025), (1575, 1791)]