19984494720

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{31}}^2\times {\mathrm{10831}}^1$

素因数の和:10915

約数の個数: 192

約数和(自身を含む): 65827797120

約数和(自身を除く): 45843302400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 32, 40, 48, 60, 62, 64, 80, 93, 96, 120, 124, 128, 155, 160, 186, 192, 240, 248, 310, 320, 372, 384, 465, 480, 496, 620, 640, 744, 930, 960, 961, 992, 1240, 1488, 1860, 1920, 1922, 1984, 2480, 2883, 2976, 3720, 3844, 3968, 4805, 4960, 5766, 5952, 7440, 7688, 9610, 9920, 10831, 11532, 11904, 14415, 14880, 15376, 19220, 19840, 21662, 23064, 28830, 29760, 30752, 32493, 38440, 43324, 46128, 54155, 57660, 59520, 61504, 64986, 76880, 86648, 92256, 108310, 115320, 123008, 129972, 153760, 162465, 173296, 184512, 216620, 230640, 259944, 307520, 324930, 335761, 346592, 369024, 433240, 461280, 519888, 615040, 649860, 671522, 693184, 866480, 922560, 1007283, 1039776, 1299720, 1343044, 1386368, 1678805, 1732960, 1845120, 2014566, 2079552, 2599440, 2686088, 3357610, 3465920, 4029132, 4159104, 5036415, 5198880, 5372176, 6715220, 6931840, 8058264, 10072830, 10397760, 10408591, 10744352, 13430440, 16116528, 20145660, 20795520, 20817182, 21488704, 26860880, 31225773, 32233056, 40291320, 41634364, 42977408, 52042955, 53721760, 62451546, 64466112, 80582640, 83268728, 104085910, 107443520, 124903092, 128932224, 156128865, 161165280, 166537456, 208171820, 214887040, 249806184, 312257730, 322330560, 333074912, 416343640, 499612368, 624515460, 644661120, 666149824, 832687280, 999224736, 1249030920, 1332299648, 1665374560, 1998449472, 2498061840, 3330749120, 3996898944, 4996123680, 6661498240, 9992247360, 19984494720]

約数ペア:

[(1, 19984494720), (2, 9992247360), (3, 6661498240), (4, 4996123680), (5, 3996898944), (6, 3330749120), (8, 2498061840), (10, 1998449472), (12, 1665374560), (15, 1332299648), (16, 1249030920), (20, 999224736), (24, 832687280), (30, 666149824), (31, 644661120), (32, 624515460), (40, 499612368), (48, 416343640), (60, 333074912), (62, 322330560), (64, 312257730), (80, 249806184), (93, 214887040), (96, 208171820), (120, 166537456), (124, 161165280), (128, 156128865), (155, 128932224), (160, 124903092), (186, 107443520), (192, 104085910), (240, 83268728), (248, 80582640), (310, 64466112), (320, 62451546), (372, 53721760), (384, 52042955), (465, 42977408), (480, 41634364), (496, 40291320), (620, 32233056), (640, 31225773), (744, 26860880), (930, 21488704), (960, 20817182), (961, 20795520), (992, 20145660), (1240, 16116528), (1488, 13430440), (1860, 10744352), (1920, 10408591), (1922, 10397760), (1984, 10072830), (2480, 8058264), (2883, 6931840), (2976, 6715220), (3720, 5372176), (3844, 5198880), (3968, 5036415), (4805, 4159104), (4960, 4029132), (5766, 3465920), (5952, 3357610), (7440, 2686088), (7688, 2599440), (9610, 2079552), (9920, 2014566), (10831, 1845120), (11532, 1732960), (11904, 1678805), (14415, 1386368), (14880, 1343044), (15376, 1299720), (19220, 1039776), (19840, 1007283), (21662, 922560), (23064, 866480), (28830, 693184), (29760, 671522), (30752, 649860), (32493, 615040), (38440, 519888), (43324, 461280), (46128, 433240), (54155, 369024), (57660, 346592), (59520, 335761), (61504, 324930), (64986, 307520), (76880, 259944), (86648, 230640), (92256, 216620), (108310, 184512), (115320, 173296), (123008, 162465), (129972, 153760)]