81373950

素因数分解:

$2^1\times 3^3\times 5^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{109}}^1$

素因数の和:216

約数の個数: 192

約数和(自身を含む): 261888000

約数和(自身を除く): 180514050

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 25, 27, 30, 35, 42, 45, 50, 54, 63, 70, 75, 79, 90, 105, 109, 126, 135, 150, 158, 175, 189, 210, 218, 225, 237, 270, 315, 327, 350, 378, 395, 450, 474, 525, 545, 553, 630, 654, 675, 711, 763, 790, 945, 981, 1050, 1090, 1106, 1185, 1350, 1422, 1526, 1575, 1635, 1659, 1890, 1962, 1975, 2133, 2289, 2370, 2725, 2765, 2943, 3150, 3270, 3318, 3555, 3815, 3950, 4266, 4578, 4725, 4905, 4977, 5450, 5530, 5886, 5925, 6867, 7110, 7630, 8175, 8295, 8611, 9450, 9810, 9954, 10665, 11445, 11850, 13734, 13825, 14715, 14931, 16350, 16590, 17222, 17775, 19075, 20601, 21330, 22890, 24525, 24885, 25833, 27650, 29430, 29862, 34335, 35550, 38150, 41202, 41475, 43055, 49050, 49770, 51666, 53325, 57225, 60277, 68670, 73575, 74655, 77499, 82950, 86110, 103005, 106650, 114450, 120554, 124425, 129165, 147150, 149310, 154998, 171675, 180831, 206010, 215275, 232497, 248850, 258330, 301385, 343350, 361662, 373275, 387495, 430550, 464994, 515025, 542493, 602770, 645825, 746550, 774990, 904155, 1030050, 1084986, 1162485, 1291650, 1506925, 1627479, 1808310, 1937475, 2324970, 2712465, 3013850, 3254958, 3874950, 4520775, 5424930, 5812425, 8137395, 9041550, 11624850, 13562325, 16274790, 27124650, 40686975, 81373950]

約数ペア:

[(1, 81373950), (2, 40686975), (3, 27124650), (5, 16274790), (6, 13562325), (7, 11624850), (9, 9041550), (10, 8137395), (14, 5812425), (15, 5424930), (18, 4520775), (21, 3874950), (25, 3254958), (27, 3013850), (30, 2712465), (35, 2324970), (42, 1937475), (45, 1808310), (50, 1627479), (54, 1506925), (63, 1291650), (70, 1162485), (75, 1084986), (79, 1030050), (90, 904155), (105, 774990), (109, 746550), (126, 645825), (135, 602770), (150, 542493), (158, 515025), (175, 464994), (189, 430550), (210, 387495), (218, 373275), (225, 361662), (237, 343350), (270, 301385), (315, 258330), (327, 248850), (350, 232497), (378, 215275), (395, 206010), (450, 180831), (474, 171675), (525, 154998), (545, 149310), (553, 147150), (630, 129165), (654, 124425), (675, 120554), (711, 114450), (763, 106650), (790, 103005), (945, 86110), (981, 82950), (1050, 77499), (1090, 74655), (1106, 73575), (1185, 68670), (1350, 60277), (1422, 57225), (1526, 53325), (1575, 51666), (1635, 49770), (1659, 49050), (1890, 43055), (1962, 41475), (1975, 41202), (2133, 38150), (2289, 35550), (2370, 34335), (2725, 29862), (2765, 29430), (2943, 27650), (3150, 25833), (3270, 24885), (3318, 24525), (3555, 22890), (3815, 21330), (3950, 20601), (4266, 19075), (4578, 17775), (4725, 17222), (4905, 16590), (4977, 16350), (5450, 14931), (5530, 14715), (5886, 13825), (5925, 13734), (6867, 11850), (7110, 11445), (7630, 10665), (8175, 9954), (8295, 9810), (8611, 9450)]