2842840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1$

素因数の和:113

約数の個数: 128

約数和(自身を含む): 8709120

約数和(自身を除く): 5866280

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 20, 22, 26, 28, 35, 40, 44, 52, 55, 56, 65, 70, 71, 77, 88, 91, 104, 110, 130, 140, 142, 143, 154, 182, 220, 260, 280, 284, 286, 308, 355, 364, 385, 440, 455, 497, 520, 568, 572, 616, 710, 715, 728, 770, 781, 910, 923, 994, 1001, 1144, 1420, 1430, 1540, 1562, 1820, 1846, 1988, 2002, 2485, 2840, 2860, 3080, 3124, 3640, 3692, 3905, 3976, 4004, 4615, 4970, 5005, 5467, 5720, 6248, 6461, 7384, 7810, 8008, 9230, 9940, 10010, 10153, 10934, 12922, 15620, 18460, 19880, 20020, 20306, 21868, 25844, 27335, 31240, 32305, 36920, 40040, 40612, 43736, 50765, 51688, 54670, 64610, 71071, 81224, 101530, 109340, 129220, 142142, 203060, 218680, 258440, 284284, 355355, 406120, 568568, 710710, 1421420, 2842840]

約数ペア:

[(1, 2842840), (2, 1421420), (4, 710710), (5, 568568), (7, 406120), (8, 355355), (10, 284284), (11, 258440), (13, 218680), (14, 203060), (20, 142142), (22, 129220), (26, 109340), (28, 101530), (35, 81224), (40, 71071), (44, 64610), (52, 54670), (55, 51688), (56, 50765), (65, 43736), (70, 40612), (71, 40040), (77, 36920), (88, 32305), (91, 31240), (104, 27335), (110, 25844), (130, 21868), (140, 20306), (142, 20020), (143, 19880), (154, 18460), (182, 15620), (220, 12922), (260, 10934), (280, 10153), (284, 10010), (286, 9940), (308, 9230), (355, 8008), (364, 7810), (385, 7384), (440, 6461), (455, 6248), (497, 5720), (520, 5467), (568, 5005), (572, 4970), (616, 4615), (710, 4004), (715, 3976), (728, 3905), (770, 3692), (781, 3640), (910, 3124), (923, 3080), (994, 2860), (1001, 2840), (1144, 2485), (1420, 2002), (1430, 1988), (1540, 1846), (1562, 1820)]