81671520

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{223}}^1$

素因数の和:357

約数の個数: 192

約数和(自身を含む): 298045440

約数和(自身を除く): 216373920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 70, 80, 84, 96, 105, 109, 112, 120, 140, 160, 168, 210, 218, 223, 224, 240, 280, 327, 336, 420, 436, 446, 480, 545, 560, 654, 669, 672, 763, 840, 872, 892, 1090, 1115, 1120, 1308, 1338, 1526, 1561, 1635, 1680, 1744, 1784, 2180, 2230, 2289, 2616, 2676, 3052, 3122, 3270, 3345, 3360, 3488, 3568, 3815, 4360, 4460, 4578, 4683, 5232, 5352, 6104, 6244, 6540, 6690, 7136, 7630, 7805, 8720, 8920, 9156, 9366, 10464, 10704, 11445, 12208, 12488, 13080, 13380, 15260, 15610, 17440, 17840, 18312, 18732, 21408, 22890, 23415, 24307, 24416, 24976, 26160, 26760, 30520, 31220, 35680, 36624, 37464, 45780, 46830, 48614, 49952, 52320, 53520, 61040, 62440, 72921, 73248, 74928, 91560, 93660, 97228, 107040, 121535, 122080, 124880, 145842, 149856, 170149, 183120, 187320, 194456, 243070, 249760, 291684, 340298, 364605, 366240, 374640, 388912, 486140, 510447, 583368, 680596, 729210, 749280, 777824, 850745, 972280, 1020894, 1166736, 1361192, 1458420, 1701490, 1944560, 2041788, 2333472, 2552235, 2722384, 2916840, 3402980, 3889120, 4083576, 5104470, 5444768, 5833680, 6805960, 8167152, 10208940, 11667360, 13611920, 16334304, 20417880, 27223840, 40835760, 81671520]

約数ペア:

[(1, 81671520), (2, 40835760), (3, 27223840), (4, 20417880), (5, 16334304), (6, 13611920), (7, 11667360), (8, 10208940), (10, 8167152), (12, 6805960), (14, 5833680), (15, 5444768), (16, 5104470), (20, 4083576), (21, 3889120), (24, 3402980), (28, 2916840), (30, 2722384), (32, 2552235), (35, 2333472), (40, 2041788), (42, 1944560), (48, 1701490), (56, 1458420), (60, 1361192), (70, 1166736), (80, 1020894), (84, 972280), (96, 850745), (105, 777824), (109, 749280), (112, 729210), (120, 680596), (140, 583368), (160, 510447), (168, 486140), (210, 388912), (218, 374640), (223, 366240), (224, 364605), (240, 340298), (280, 291684), (327, 249760), (336, 243070), (420, 194456), (436, 187320), (446, 183120), (480, 170149), (545, 149856), (560, 145842), (654, 124880), (669, 122080), (672, 121535), (763, 107040), (840, 97228), (872, 93660), (892, 91560), (1090, 74928), (1115, 73248), (1120, 72921), (1308, 62440), (1338, 61040), (1526, 53520), (1561, 52320), (1635, 49952), (1680, 48614), (1744, 46830), (1784, 45780), (2180, 37464), (2230, 36624), (2289, 35680), (2616, 31220), (2676, 30520), (3052, 26760), (3122, 26160), (3270, 24976), (3345, 24416), (3360, 24307), (3488, 23415), (3568, 22890), (3815, 21408), (4360, 18732), (4460, 18312), (4578, 17840), (4683, 17440), (5232, 15610), (5352, 15260), (6104, 13380), (6244, 13080), (6540, 12488), (6690, 12208), (7136, 11445), (7630, 10704), (7805, 10464), (8720, 9366), (8920, 9156)]