21108787840

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{31}}^2\times {\mathrm{4903}}^1$

素因数の和:4991

約数の個数: 192

約数和(自身を含む): 59604785280

約数和(自身を除く): 38495997440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 56, 62, 64, 70, 80, 112, 124, 128, 140, 155, 160, 217, 224, 248, 280, 310, 320, 434, 448, 496, 560, 620, 640, 868, 896, 961, 992, 1085, 1120, 1240, 1736, 1922, 1984, 2170, 2240, 2480, 3472, 3844, 3968, 4340, 4480, 4805, 4903, 4960, 6727, 6944, 7688, 8680, 9610, 9806, 9920, 13454, 13888, 15376, 17360, 19220, 19612, 19840, 24515, 26908, 27776, 30752, 33635, 34321, 34720, 38440, 39224, 49030, 53816, 61504, 67270, 68642, 69440, 76880, 78448, 98060, 107632, 123008, 134540, 137284, 138880, 151993, 153760, 156896, 171605, 196120, 215264, 269080, 274568, 303986, 307520, 313792, 343210, 392240, 430528, 538160, 549136, 607972, 615040, 627584, 686420, 759965, 784480, 861056, 1063951, 1076320, 1098272, 1215944, 1372840, 1519930, 1568960, 2127902, 2152640, 2196544, 2431888, 2745680, 3039860, 3137920, 4255804, 4305280, 4393088, 4711783, 4863776, 5319755, 5491360, 6079720, 8511608, 9423566, 9727552, 10639510, 10982720, 12159440, 17023216, 18847132, 19455104, 21279020, 21965440, 23558915, 24318880, 32982481, 34046432, 37694264, 42558040, 47117830, 48637760, 65964962, 68092864, 75388528, 85116080, 94235660, 97275520, 131929924, 136185728, 150777056, 164912405, 170232160, 188471320, 263859848, 301554112, 329824810, 340464320, 376942640, 527719696, 603108224, 659649620, 680928640, 753885280, 1055439392, 1319299240, 1507770560, 2110878784, 2638598480, 3015541120, 4221757568, 5277196960, 10554393920, 21108787840]

約数ペア:

[(1, 21108787840), (2, 10554393920), (4, 5277196960), (5, 4221757568), (7, 3015541120), (8, 2638598480), (10, 2110878784), (14, 1507770560), (16, 1319299240), (20, 1055439392), (28, 753885280), (31, 680928640), (32, 659649620), (35, 603108224), (40, 527719696), (56, 376942640), (62, 340464320), (64, 329824810), (70, 301554112), (80, 263859848), (112, 188471320), (124, 170232160), (128, 164912405), (140, 150777056), (155, 136185728), (160, 131929924), (217, 97275520), (224, 94235660), (248, 85116080), (280, 75388528), (310, 68092864), (320, 65964962), (434, 48637760), (448, 47117830), (496, 42558040), (560, 37694264), (620, 34046432), (640, 32982481), (868, 24318880), (896, 23558915), (961, 21965440), (992, 21279020), (1085, 19455104), (1120, 18847132), (1240, 17023216), (1736, 12159440), (1922, 10982720), (1984, 10639510), (2170, 9727552), (2240, 9423566), (2480, 8511608), (3472, 6079720), (3844, 5491360), (3968, 5319755), (4340, 4863776), (4480, 4711783), (4805, 4393088), (4903, 4305280), (4960, 4255804), (6727, 3137920), (6944, 3039860), (7688, 2745680), (8680, 2431888), (9610, 2196544), (9806, 2152640), (9920, 2127902), (13454, 1568960), (13888, 1519930), (15376, 1372840), (17360, 1215944), (19220, 1098272), (19612, 1076320), (19840, 1063951), (24515, 861056), (26908, 784480), (27776, 759965), (30752, 686420), (33635, 627584), (34321, 615040), (34720, 607972), (38440, 549136), (39224, 538160), (49030, 430528), (53816, 392240), (61504, 343210), (67270, 313792), (68642, 307520), (69440, 303986), (76880, 274568), (78448, 269080), (98060, 215264), (107632, 196120), (123008, 171605), (134540, 156896), (137284, 153760), (138880, 151993)]