81145680

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{4391}}^1$

素因数の和:4425

約数の個数: 160

約数和(自身を含む): 313694208

約数和(自身を除く): 232548528

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 16, 20, 21, 22, 24, 28, 30, 33, 35, 40, 42, 44, 48, 55, 56, 60, 66, 70, 77, 80, 84, 88, 105, 110, 112, 120, 132, 140, 154, 165, 168, 176, 210, 220, 231, 240, 264, 280, 308, 330, 336, 385, 420, 440, 462, 528, 560, 616, 660, 770, 840, 880, 924, 1155, 1232, 1320, 1540, 1680, 1848, 2310, 2640, 3080, 3696, 4391, 4620, 6160, 8782, 9240, 13173, 17564, 18480, 21955, 26346, 30737, 35128, 43910, 48301, 52692, 61474, 65865, 70256, 87820, 92211, 96602, 105384, 122948, 131730, 144903, 153685, 175640, 184422, 193204, 210768, 241505, 245896, 263460, 289806, 307370, 338107, 351280, 368844, 386408, 461055, 483010, 491792, 526920, 579612, 614740, 676214, 724515, 737688, 772816, 922110, 966020, 1014321, 1053840, 1159224, 1229480, 1352428, 1449030, 1475376, 1690535, 1844220, 1932040, 2028642, 2318448, 2458960, 2704856, 2898060, 3381070, 3688440, 3864080, 4057284, 5071605, 5409712, 5796120, 6762140, 7376880, 8114568, 10143210, 11592240, 13524280, 16229136, 20286420, 27048560, 40572840, 81145680]

約数ペア:

[(1, 81145680), (2, 40572840), (3, 27048560), (4, 20286420), (5, 16229136), (6, 13524280), (7, 11592240), (8, 10143210), (10, 8114568), (11, 7376880), (12, 6762140), (14, 5796120), (15, 5409712), (16, 5071605), (20, 4057284), (21, 3864080), (22, 3688440), (24, 3381070), (28, 2898060), (30, 2704856), (33, 2458960), (35, 2318448), (40, 2028642), (42, 1932040), (44, 1844220), (48, 1690535), (55, 1475376), (56, 1449030), (60, 1352428), (66, 1229480), (70, 1159224), (77, 1053840), (80, 1014321), (84, 966020), (88, 922110), (105, 772816), (110, 737688), (112, 724515), (120, 676214), (132, 614740), (140, 579612), (154, 526920), (165, 491792), (168, 483010), (176, 461055), (210, 386408), (220, 368844), (231, 351280), (240, 338107), (264, 307370), (280, 289806), (308, 263460), (330, 245896), (336, 241505), (385, 210768), (420, 193204), (440, 184422), (462, 175640), (528, 153685), (560, 144903), (616, 131730), (660, 122948), (770, 105384), (840, 96602), (880, 92211), (924, 87820), (1155, 70256), (1232, 65865), (1320, 61474), (1540, 52692), (1680, 48301), (1848, 43910), (2310, 35128), (2640, 30737), (3080, 26346), (3696, 21955), (4391, 18480), (4620, 17564), (6160, 13173), (8782, 9240)]