78129520

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{1049}}^1$

素因数の和:1095

約数の個数: 120

約数和(自身を含む): 222642000

約数和(自身を除く): 144512480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 35, 38, 40, 49, 56, 70, 76, 80, 95, 98, 112, 133, 140, 152, 190, 196, 245, 266, 280, 304, 380, 392, 490, 532, 560, 665, 760, 784, 931, 980, 1049, 1064, 1330, 1520, 1862, 1960, 2098, 2128, 2660, 3724, 3920, 4196, 4655, 5245, 5320, 7343, 7448, 8392, 9310, 10490, 10640, 14686, 14896, 16784, 18620, 19931, 20980, 29372, 36715, 37240, 39862, 41960, 51401, 58744, 73430, 74480, 79724, 83920, 99655, 102802, 117488, 139517, 146860, 159448, 199310, 205604, 257005, 279034, 293720, 318896, 398620, 411208, 514010, 558068, 587440, 697585, 797240, 822416, 976619, 1028020, 1116136, 1395170, 1594480, 1953238, 2056040, 2232272, 2790340, 3906476, 4112080, 4883095, 5580680, 7812952, 9766190, 11161360, 15625904, 19532380, 39064760, 78129520]

約数ペア:

[(1, 78129520), (2, 39064760), (4, 19532380), (5, 15625904), (7, 11161360), (8, 9766190), (10, 7812952), (14, 5580680), (16, 4883095), (19, 4112080), (20, 3906476), (28, 2790340), (35, 2232272), (38, 2056040), (40, 1953238), (49, 1594480), (56, 1395170), (70, 1116136), (76, 1028020), (80, 976619), (95, 822416), (98, 797240), (112, 697585), (133, 587440), (140, 558068), (152, 514010), (190, 411208), (196, 398620), (245, 318896), (266, 293720), (280, 279034), (304, 257005), (380, 205604), (392, 199310), (490, 159448), (532, 146860), (560, 139517), (665, 117488), (760, 102802), (784, 99655), (931, 83920), (980, 79724), (1049, 74480), (1064, 73430), (1330, 58744), (1520, 51401), (1862, 41960), (1960, 39862), (2098, 37240), (2128, 36715), (2660, 29372), (3724, 20980), (3920, 19931), (4196, 18620), (4655, 16784), (5245, 14896), (5320, 14686), (7343, 10640), (7448, 10490), (8392, 9310)]