79919840

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{499}}^1$

素因数の和:545

約数の個数: 192

約数和(自身を含む): 254016000

約数和(自身を除く): 174096160

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 16, 20, 22, 26, 28, 32, 35, 40, 44, 52, 55, 56, 65, 70, 77, 80, 88, 91, 104, 110, 112, 130, 140, 143, 154, 160, 176, 182, 208, 220, 224, 260, 280, 286, 308, 352, 364, 385, 416, 440, 455, 499, 520, 560, 572, 616, 715, 728, 770, 880, 910, 998, 1001, 1040, 1120, 1144, 1232, 1430, 1456, 1540, 1760, 1820, 1996, 2002, 2080, 2288, 2464, 2495, 2860, 2912, 3080, 3493, 3640, 3992, 4004, 4576, 4990, 5005, 5489, 5720, 6160, 6487, 6986, 7280, 7984, 8008, 9980, 10010, 10978, 11440, 12320, 12974, 13972, 14560, 15968, 16016, 17465, 19960, 20020, 21956, 22880, 25948, 27445, 27944, 32032, 32435, 34930, 38423, 39920, 40040, 43912, 45409, 51896, 54890, 55888, 64870, 69860, 71357, 76846, 79840, 80080, 87824, 90818, 103792, 109780, 111776, 129740, 139720, 142714, 153692, 160160, 175648, 181636, 192115, 207584, 219560, 227045, 259480, 279440, 285428, 307384, 356785, 363272, 384230, 439120, 454090, 499499, 518960, 558880, 570856, 614768, 713570, 726544, 768460, 878240, 908180, 998998, 1037920, 1141712, 1229536, 1427140, 1453088, 1536920, 1816360, 1997996, 2283424, 2497495, 2854280, 3073840, 3632720, 3995992, 4994990, 5708560, 6147680, 7265440, 7991984, 9989980, 11417120, 15983968, 19979960, 39959920, 79919840]

約数ペア:

[(1, 79919840), (2, 39959920), (4, 19979960), (5, 15983968), (7, 11417120), (8, 9989980), (10, 7991984), (11, 7265440), (13, 6147680), (14, 5708560), (16, 4994990), (20, 3995992), (22, 3632720), (26, 3073840), (28, 2854280), (32, 2497495), (35, 2283424), (40, 1997996), (44, 1816360), (52, 1536920), (55, 1453088), (56, 1427140), (65, 1229536), (70, 1141712), (77, 1037920), (80, 998998), (88, 908180), (91, 878240), (104, 768460), (110, 726544), (112, 713570), (130, 614768), (140, 570856), (143, 558880), (154, 518960), (160, 499499), (176, 454090), (182, 439120), (208, 384230), (220, 363272), (224, 356785), (260, 307384), (280, 285428), (286, 279440), (308, 259480), (352, 227045), (364, 219560), (385, 207584), (416, 192115), (440, 181636), (455, 175648), (499, 160160), (520, 153692), (560, 142714), (572, 139720), (616, 129740), (715, 111776), (728, 109780), (770, 103792), (880, 90818), (910, 87824), (998, 80080), (1001, 79840), (1040, 76846), (1120, 71357), (1144, 69860), (1232, 64870), (1430, 55888), (1456, 54890), (1540, 51896), (1760, 45409), (1820, 43912), (1996, 40040), (2002, 39920), (2080, 38423), (2288, 34930), (2464, 32435), (2495, 32032), (2860, 27944), (2912, 27445), (3080, 25948), (3493, 22880), (3640, 21956), (3992, 20020), (4004, 19960), (4576, 17465), (4990, 16016), (5005, 15968), (5489, 14560), (5720, 13972), (6160, 12974), (6487, 12320), (6986, 11440), (7280, 10978), (7984, 10010), (8008, 9980)]