28428400

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1$

素因数の和:120

約数の個数: 240

約数和(自身を含む): 92994048

約数和(自身を除く): 64565648

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 16, 20, 22, 25, 26, 28, 35, 40, 44, 50, 52, 55, 56, 65, 70, 71, 77, 80, 88, 91, 100, 104, 110, 112, 130, 140, 142, 143, 154, 175, 176, 182, 200, 208, 220, 260, 275, 280, 284, 286, 308, 325, 350, 355, 364, 385, 400, 440, 455, 497, 520, 550, 560, 568, 572, 616, 650, 700, 710, 715, 728, 770, 781, 880, 910, 923, 994, 1001, 1040, 1100, 1136, 1144, 1232, 1300, 1400, 1420, 1430, 1456, 1540, 1562, 1775, 1820, 1846, 1925, 1988, 2002, 2200, 2275, 2288, 2485, 2600, 2800, 2840, 2860, 3080, 3124, 3550, 3575, 3640, 3692, 3850, 3905, 3976, 4004, 4400, 4550, 4615, 4970, 5005, 5200, 5467, 5680, 5720, 6160, 6248, 6461, 7100, 7150, 7280, 7384, 7700, 7810, 7952, 8008, 9100, 9230, 9940, 10010, 10153, 10934, 11440, 12425, 12496, 12922, 14200, 14300, 14768, 15400, 15620, 16016, 18200, 18460, 19525, 19880, 20020, 20306, 21868, 23075, 24850, 25025, 25844, 27335, 28400, 28600, 30800, 31240, 32305, 36400, 36920, 39050, 39760, 40040, 40612, 43736, 46150, 49700, 50050, 50765, 51688, 54670, 57200, 62480, 64610, 71071, 73840, 78100, 80080, 81224, 87472, 92300, 99400, 100100, 101530, 103376, 109340, 129220, 136675, 142142, 156200, 161525, 162448, 184600, 198800, 200200, 203060, 218680, 253825, 258440, 273350, 284284, 312400, 323050, 355355, 369200, 400400, 406120, 437360, 507650, 516880, 546700, 568568, 646100, 710710, 812240, 1015300, 1093400, 1137136, 1292200, 1421420, 1776775, 2030600, 2186800, 2584400, 2842840, 3553550, 4061200, 5685680, 7107100, 14214200, 28428400]

約数ペア:

[(1, 28428400), (2, 14214200), (4, 7107100), (5, 5685680), (7, 4061200), (8, 3553550), (10, 2842840), (11, 2584400), (13, 2186800), (14, 2030600), (16, 1776775), (20, 1421420), (22, 1292200), (25, 1137136), (26, 1093400), (28, 1015300), (35, 812240), (40, 710710), (44, 646100), (50, 568568), (52, 546700), (55, 516880), (56, 507650), (65, 437360), (70, 406120), (71, 400400), (77, 369200), (80, 355355), (88, 323050), (91, 312400), (100, 284284), (104, 273350), (110, 258440), (112, 253825), (130, 218680), (140, 203060), (142, 200200), (143, 198800), (154, 184600), (175, 162448), (176, 161525), (182, 156200), (200, 142142), (208, 136675), (220, 129220), (260, 109340), (275, 103376), (280, 101530), (284, 100100), (286, 99400), (308, 92300), (325, 87472), (350, 81224), (355, 80080), (364, 78100), (385, 73840), (400, 71071), (440, 64610), (455, 62480), (497, 57200), (520, 54670), (550, 51688), (560, 50765), (568, 50050), (572, 49700), (616, 46150), (650, 43736), (700, 40612), (710, 40040), (715, 39760), (728, 39050), (770, 36920), (781, 36400), (880, 32305), (910, 31240), (923, 30800), (994, 28600), (1001, 28400), (1040, 27335), (1100, 25844), (1136, 25025), (1144, 24850), (1232, 23075), (1300, 21868), (1400, 20306), (1420, 20020), (1430, 19880), (1456, 19525), (1540, 18460), (1562, 18200), (1775, 16016), (1820, 15620), (1846, 15400), (1925, 14768), (1988, 14300), (2002, 14200), (2200, 12922), (2275, 12496), (2288, 12425), (2485, 11440), (2600, 10934), (2800, 10153), (2840, 10010), (2860, 9940), (3080, 9230), (3124, 9100), (3550, 8008), (3575, 7952), (3640, 7810), (3692, 7700), (3850, 7384), (3905, 7280), (3976, 7150), (4004, 7100), (4400, 6461), (4550, 6248), (4615, 6160), (4970, 5720), (5005, 5680), (5200, 5467)]