81149880

素因数分解:

$2^3\times 3^1\times 5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{373}}^1$

素因数の和:438

約数の個数: 192

約数和(自身を含む): 291630240

約数和(自身を除く): 210480360

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 37, 40, 42, 49, 56, 60, 70, 74, 84, 98, 105, 111, 120, 140, 147, 148, 168, 185, 196, 210, 222, 245, 259, 280, 294, 296, 370, 373, 392, 420, 444, 490, 518, 555, 588, 735, 740, 746, 777, 840, 888, 980, 1036, 1110, 1119, 1176, 1295, 1470, 1480, 1492, 1554, 1813, 1865, 1960, 2072, 2220, 2238, 2590, 2611, 2940, 2984, 3108, 3626, 3730, 3885, 4440, 4476, 5180, 5222, 5439, 5595, 5880, 6216, 7252, 7460, 7770, 7833, 8952, 9065, 10360, 10444, 10878, 11190, 13055, 13801, 14504, 14920, 15540, 15666, 18130, 18277, 20888, 21756, 22380, 26110, 27195, 27602, 31080, 31332, 36260, 36554, 39165, 41403, 43512, 44760, 52220, 54390, 54831, 55204, 62664, 69005, 72520, 73108, 78330, 82806, 91385, 96607, 104440, 108780, 109662, 110408, 138010, 146216, 156660, 165612, 182770, 193214, 207015, 217560, 219324, 274155, 276020, 289821, 313320, 331224, 365540, 386428, 414030, 438648, 483035, 548310, 552040, 579642, 676249, 731080, 772856, 828060, 966070, 1096620, 1159284, 1352498, 1449105, 1656120, 1932140, 2028747, 2193240, 2318568, 2704996, 2898210, 3381245, 3864280, 4057494, 5409992, 5796420, 6762490, 8114988, 10143735, 11592840, 13524980, 16229976, 20287470, 27049960, 40574940, 81149880]

約数ペア:

[(1, 81149880), (2, 40574940), (3, 27049960), (4, 20287470), (5, 16229976), (6, 13524980), (7, 11592840), (8, 10143735), (10, 8114988), (12, 6762490), (14, 5796420), (15, 5409992), (20, 4057494), (21, 3864280), (24, 3381245), (28, 2898210), (30, 2704996), (35, 2318568), (37, 2193240), (40, 2028747), (42, 1932140), (49, 1656120), (56, 1449105), (60, 1352498), (70, 1159284), (74, 1096620), (84, 966070), (98, 828060), (105, 772856), (111, 731080), (120, 676249), (140, 579642), (147, 552040), (148, 548310), (168, 483035), (185, 438648), (196, 414030), (210, 386428), (222, 365540), (245, 331224), (259, 313320), (280, 289821), (294, 276020), (296, 274155), (370, 219324), (373, 217560), (392, 207015), (420, 193214), (444, 182770), (490, 165612), (518, 156660), (555, 146216), (588, 138010), (735, 110408), (740, 109662), (746, 108780), (777, 104440), (840, 96607), (888, 91385), (980, 82806), (1036, 78330), (1110, 73108), (1119, 72520), (1176, 69005), (1295, 62664), (1470, 55204), (1480, 54831), (1492, 54390), (1554, 52220), (1813, 44760), (1865, 43512), (1960, 41403), (2072, 39165), (2220, 36554), (2238, 36260), (2590, 31332), (2611, 31080), (2940, 27602), (2984, 27195), (3108, 26110), (3626, 22380), (3730, 21756), (3885, 20888), (4440, 18277), (4476, 18130), (5180, 15666), (5222, 15540), (5439, 14920), (5595, 14504), (5880, 13801), (6216, 13055), (7252, 11190), (7460, 10878), (7770, 10444), (7833, 10360), (8952, 9065)]