820295280

素因数分解:

$2^4\times 3^2\times 5^1\times 7^2\times {\mathrm{23251}}^1$

素因数の和:23284

約数の個数: 180

約数和(自身を含む): 3204730152

約数和(自身を除く): 2384434872

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, 42, 45, 48, 49, 56, 60, 63, 70, 72, 80, 84, 90, 98, 105, 112, 120, 126, 140, 144, 147, 168, 180, 196, 210, 240, 245, 252, 280, 294, 315, 336, 360, 392, 420, 441, 490, 504, 560, 588, 630, 720, 735, 784, 840, 882, 980, 1008, 1176, 1260, 1470, 1680, 1764, 1960, 2205, 2352, 2520, 2940, 3528, 3920, 4410, 5040, 5880, 7056, 8820, 11760, 17640, 23251, 35280, 46502, 69753, 93004, 116255, 139506, 162757, 186008, 209259, 232510, 279012, 325514, 348765, 372016, 418518, 465020, 488271, 558024, 651028, 697530, 813785, 837036, 930040, 976542, 1046295, 1116048, 1139299, 1302056, 1395060, 1464813, 1627570, 1674072, 1860080, 1953084, 2092590, 2278598, 2441355, 2604112, 2790120, 2929626, 3255140, 3348144, 3417897, 3906168, 4185180, 4557196, 4882710, 5580240, 5696495, 5859252, 6510280, 6835794, 7324065, 7812336, 8370360, 9114392, 9765420, 10253691, 11392990, 11718504, 13020560, 13671588, 14648130, 16740720, 17089485, 18228784, 19530840, 20507382, 22785980, 23437008, 27343176, 29296260, 34178970, 39061680, 41014764, 45571960, 51268455, 54686352, 58592520, 68357940, 82029528, 91143920, 102536910, 117185040, 136715880, 164059056, 205073820, 273431760, 410147640, 820295280]

約数ペア:

[(1, 820295280), (2, 410147640), (3, 273431760), (4, 205073820), (5, 164059056), (6, 136715880), (7, 117185040), (8, 102536910), (9, 91143920), (10, 82029528), (12, 68357940), (14, 58592520), (15, 54686352), (16, 51268455), (18, 45571960), (20, 41014764), (21, 39061680), (24, 34178970), (28, 29296260), (30, 27343176), (35, 23437008), (36, 22785980), (40, 20507382), (42, 19530840), (45, 18228784), (48, 17089485), (49, 16740720), (56, 14648130), (60, 13671588), (63, 13020560), (70, 11718504), (72, 11392990), (80, 10253691), (84, 9765420), (90, 9114392), (98, 8370360), (105, 7812336), (112, 7324065), (120, 6835794), (126, 6510280), (140, 5859252), (144, 5696495), (147, 5580240), (168, 4882710), (180, 4557196), (196, 4185180), (210, 3906168), (240, 3417897), (245, 3348144), (252, 3255140), (280, 2929626), (294, 2790120), (315, 2604112), (336, 2441355), (360, 2278598), (392, 2092590), (420, 1953084), (441, 1860080), (490, 1674072), (504, 1627570), (560, 1464813), (588, 1395060), (630, 1302056), (720, 1139299), (735, 1116048), (784, 1046295), (840, 976542), (882, 930040), (980, 837036), (1008, 813785), (1176, 697530), (1260, 651028), (1470, 558024), (1680, 488271), (1764, 465020), (1960, 418518), (2205, 372016), (2352, 348765), (2520, 325514), (2940, 279012), (3528, 232510), (3920, 209259), (4410, 186008), (5040, 162757), (5880, 139506), (7056, 116255), (8820, 93004), (11760, 69753), (17640, 46502), (23251, 35280)]