19725440

素因数分解:

$2^7\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1$

素因数の和:87

約数の個数: 192

約数和(自身を含む): 59651640

約数和(自身を除く): 39926200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 32, 34, 35, 37, 40, 49, 56, 64, 68, 70, 74, 80, 85, 98, 112, 119, 128, 136, 140, 148, 160, 170, 185, 196, 224, 238, 245, 259, 272, 280, 296, 320, 340, 370, 392, 448, 476, 490, 518, 544, 560, 592, 595, 629, 640, 680, 740, 784, 833, 896, 952, 980, 1036, 1088, 1120, 1184, 1190, 1258, 1295, 1360, 1480, 1568, 1666, 1813, 1904, 1960, 2072, 2176, 2240, 2368, 2380, 2516, 2590, 2720, 2960, 3136, 3145, 3332, 3626, 3808, 3920, 4144, 4165, 4403, 4480, 4736, 4760, 5032, 5180, 5440, 5920, 6272, 6290, 6664, 7252, 7616, 7840, 8288, 8330, 8806, 9065, 9520, 10064, 10360, 10880, 11840, 12580, 13328, 14504, 15232, 15680, 16576, 16660, 17612, 18130, 19040, 20128, 20720, 22015, 23680, 25160, 26656, 29008, 30821, 31360, 33152, 33320, 35224, 36260, 38080, 40256, 41440, 44030, 50320, 53312, 58016, 61642, 66640, 70448, 72520, 76160, 80512, 82880, 88060, 100640, 106624, 116032, 123284, 133280, 140896, 145040, 154105, 165760, 176120, 201280, 232064, 246568, 266560, 281792, 290080, 308210, 352240, 402560, 493136, 533120, 563584, 580160, 616420, 704480, 986272, 1160320, 1232840, 1408960, 1972544, 2465680, 2817920, 3945088, 4931360, 9862720, 19725440]

約数ペア:

[(1, 19725440), (2, 9862720), (4, 4931360), (5, 3945088), (7, 2817920), (8, 2465680), (10, 1972544), (14, 1408960), (16, 1232840), (17, 1160320), (20, 986272), (28, 704480), (32, 616420), (34, 580160), (35, 563584), (37, 533120), (40, 493136), (49, 402560), (56, 352240), (64, 308210), (68, 290080), (70, 281792), (74, 266560), (80, 246568), (85, 232064), (98, 201280), (112, 176120), (119, 165760), (128, 154105), (136, 145040), (140, 140896), (148, 133280), (160, 123284), (170, 116032), (185, 106624), (196, 100640), (224, 88060), (238, 82880), (245, 80512), (259, 76160), (272, 72520), (280, 70448), (296, 66640), (320, 61642), (340, 58016), (370, 53312), (392, 50320), (448, 44030), (476, 41440), (490, 40256), (518, 38080), (544, 36260), (560, 35224), (592, 33320), (595, 33152), (629, 31360), (640, 30821), (680, 29008), (740, 26656), (784, 25160), (833, 23680), (896, 22015), (952, 20720), (980, 20128), (1036, 19040), (1088, 18130), (1120, 17612), (1184, 16660), (1190, 16576), (1258, 15680), (1295, 15232), (1360, 14504), (1480, 13328), (1568, 12580), (1666, 11840), (1813, 10880), (1904, 10360), (1960, 10064), (2072, 9520), (2176, 9065), (2240, 8806), (2368, 8330), (2380, 8288), (2516, 7840), (2590, 7616), (2720, 7252), (2960, 6664), (3136, 6290), (3145, 6272), (3332, 5920), (3626, 5440), (3808, 5180), (3920, 5032), (4144, 4760), (4165, 4736), (4403, 4480)]