2161395880

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{67}}^1\times {\mathrm{109}}^1\times {\mathrm{151}}^1$

素因数の和:352

約数の個数: 192

約数和(自身を含む): 5832604800

約数和(自身を除く): 3671208920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 67, 70, 98, 109, 134, 140, 151, 196, 218, 245, 268, 280, 302, 335, 392, 436, 469, 490, 536, 545, 604, 670, 755, 763, 872, 938, 980, 1057, 1090, 1208, 1340, 1510, 1526, 1876, 1960, 2114, 2180, 2345, 2680, 3020, 3052, 3283, 3752, 3815, 4228, 4360, 4690, 5285, 5341, 6040, 6104, 6566, 7303, 7399, 7630, 8456, 9380, 10117, 10570, 10682, 13132, 14606, 14798, 15260, 16415, 16459, 18760, 20234, 21140, 21364, 26264, 26705, 29212, 29596, 30520, 32830, 32918, 36515, 36995, 40468, 42280, 42728, 50585, 51121, 53410, 58424, 59192, 65660, 65836, 70819, 73030, 73990, 80936, 82295, 101170, 102242, 106820, 115213, 131320, 131672, 141638, 146060, 147980, 164590, 202340, 204484, 213640, 230426, 255605, 283276, 292120, 295960, 329180, 354095, 357847, 404680, 408968, 460852, 495733, 511210, 566552, 576065, 658360, 708190, 715694, 806491, 921704, 991466, 1022420, 1102753, 1152130, 1416380, 1431388, 1612982, 1789235, 1982932, 2044840, 2205506, 2304260, 2478665, 2832760, 2862776, 3225964, 3578470, 3965864, 4032455, 4411012, 4608520, 4957330, 5513765, 6451928, 7156940, 7719271, 8064910, 8822024, 9914660, 11027530, 14313880, 15438542, 16129820, 19829320, 22055060, 30877084, 32259640, 38596355, 44110120, 54034897, 61754168, 77192710, 108069794, 154385420, 216139588, 270174485, 308770840, 432279176, 540348970, 1080697940, 2161395880]

約数ペア:

[(1, 2161395880), (2, 1080697940), (4, 540348970), (5, 432279176), (7, 308770840), (8, 270174485), (10, 216139588), (14, 154385420), (20, 108069794), (28, 77192710), (35, 61754168), (40, 54034897), (49, 44110120), (56, 38596355), (67, 32259640), (70, 30877084), (98, 22055060), (109, 19829320), (134, 16129820), (140, 15438542), (151, 14313880), (196, 11027530), (218, 9914660), (245, 8822024), (268, 8064910), (280, 7719271), (302, 7156940), (335, 6451928), (392, 5513765), (436, 4957330), (469, 4608520), (490, 4411012), (536, 4032455), (545, 3965864), (604, 3578470), (670, 3225964), (755, 2862776), (763, 2832760), (872, 2478665), (938, 2304260), (980, 2205506), (1057, 2044840), (1090, 1982932), (1208, 1789235), (1340, 1612982), (1510, 1431388), (1526, 1416380), (1876, 1152130), (1960, 1102753), (2114, 1022420), (2180, 991466), (2345, 921704), (2680, 806491), (3020, 715694), (3052, 708190), (3283, 658360), (3752, 576065), (3815, 566552), (4228, 511210), (4360, 495733), (4690, 460852), (5285, 408968), (5341, 404680), (6040, 357847), (6104, 354095), (6566, 329180), (7303, 295960), (7399, 292120), (7630, 283276), (8456, 255605), (9380, 230426), (10117, 213640), (10570, 204484), (10682, 202340), (13132, 164590), (14606, 147980), (14798, 146060), (15260, 141638), (16415, 131672), (16459, 131320), (18760, 115213), (20234, 106820), (21140, 102242), (21364, 101170), (26264, 82295), (26705, 80936), (29212, 73990), (29596, 73030), (30520, 70819), (32830, 65836), (32918, 65660), (36515, 59192), (36995, 58424), (40468, 53410), (42280, 51121), (42728, 50585)]