204780240

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{991}}^1$

素因数の和:1058

約数の個数: 240

約数和(自身を含む): 805948416

約数和(自身を除く): 601168176

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 41, 42, 45, 48, 56, 60, 63, 70, 72, 80, 82, 84, 90, 105, 112, 120, 123, 126, 140, 144, 164, 168, 180, 205, 210, 240, 246, 252, 280, 287, 315, 328, 336, 360, 369, 410, 420, 492, 504, 560, 574, 615, 630, 656, 720, 738, 820, 840, 861, 984, 991, 1008, 1148, 1230, 1260, 1435, 1476, 1640, 1680, 1722, 1845, 1968, 1982, 2296, 2460, 2520, 2583, 2870, 2952, 2973, 3280, 3444, 3690, 3964, 4305, 4592, 4920, 4955, 5040, 5166, 5740, 5904, 5946, 6888, 6937, 7380, 7928, 8610, 8919, 9840, 9910, 10332, 11480, 11892, 12915, 13776, 13874, 14760, 14865, 15856, 17220, 17838, 19820, 20664, 20811, 22960, 23784, 25830, 27748, 29520, 29730, 34440, 34685, 35676, 39640, 40631, 41328, 41622, 44595, 47568, 51660, 55496, 59460, 62433, 68880, 69370, 71352, 79280, 81262, 83244, 89190, 103320, 104055, 110992, 118920, 121893, 124866, 138740, 142704, 162524, 166488, 178380, 203155, 206640, 208110, 237840, 243786, 249732, 277480, 284417, 312165, 325048, 332976, 356760, 365679, 406310, 416220, 487572, 499464, 554960, 568834, 609465, 624330, 650096, 713520, 731358, 812620, 832440, 853251, 975144, 998928, 1137668, 1218930, 1248660, 1422085, 1462716, 1625240, 1664880, 1706502, 1828395, 1950288, 2275336, 2437860, 2497320, 2559753, 2844170, 2925432, 3250480, 3413004, 3656790, 4266255, 4550672, 4875720, 4994640, 5119506, 5688340, 5850864, 6826008, 7313580, 8532510, 9751440, 10239012, 11376680, 12798765, 13652016, 14627160, 17065020, 20478024, 22753360, 25597530, 29254320, 34130040, 40956048, 51195060, 68260080, 102390120, 204780240]

約数ペア:

[(1, 204780240), (2, 102390120), (3, 68260080), (4, 51195060), (5, 40956048), (6, 34130040), (7, 29254320), (8, 25597530), (9, 22753360), (10, 20478024), (12, 17065020), (14, 14627160), (15, 13652016), (16, 12798765), (18, 11376680), (20, 10239012), (21, 9751440), (24, 8532510), (28, 7313580), (30, 6826008), (35, 5850864), (36, 5688340), (40, 5119506), (41, 4994640), (42, 4875720), (45, 4550672), (48, 4266255), (56, 3656790), (60, 3413004), (63, 3250480), (70, 2925432), (72, 2844170), (80, 2559753), (82, 2497320), (84, 2437860), (90, 2275336), (105, 1950288), (112, 1828395), (120, 1706502), (123, 1664880), (126, 1625240), (140, 1462716), (144, 1422085), (164, 1248660), (168, 1218930), (180, 1137668), (205, 998928), (210, 975144), (240, 853251), (246, 832440), (252, 812620), (280, 731358), (287, 713520), (315, 650096), (328, 624330), (336, 609465), (360, 568834), (369, 554960), (410, 499464), (420, 487572), (492, 416220), (504, 406310), (560, 365679), (574, 356760), (615, 332976), (630, 325048), (656, 312165), (720, 284417), (738, 277480), (820, 249732), (840, 243786), (861, 237840), (984, 208110), (991, 206640), (1008, 203155), (1148, 178380), (1230, 166488), (1260, 162524), (1435, 142704), (1476, 138740), (1640, 124866), (1680, 121893), (1722, 118920), (1845, 110992), (1968, 104055), (1982, 103320), (2296, 89190), (2460, 83244), (2520, 81262), (2583, 79280), (2870, 71352), (2952, 69370), (2973, 68880), (3280, 62433), (3444, 59460), (3690, 55496), (3964, 51660), (4305, 47568), (4592, 44595), (4920, 41622), (4955, 41328), (5040, 40631), (5166, 39640), (5740, 35676), (5904, 34685), (5946, 34440), (6888, 29730), (6937, 29520), (7380, 27748), (7928, 25830), (8610, 23784), (8919, 22960), (9840, 20811), (9910, 20664), (10332, 19820), (11480, 17838), (11892, 17220), (12915, 15856), (13776, 14865), (13874, 14760)]