8718807040

素因数分解:

$2^{12}\times 5^1\times {\mathrm{31}}^2\times {\mathrm{443}}^1$

素因数の和:534

約数の個数: 156

約数和(自身を含む): 21668078232

約数和(自身を除く): 12949271192

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 443, 496, 512, 620, 640, 886, 961, 992, 1024, 1240, 1280, 1772, 1922, 1984, 2048, 2215, 2480, 2560, 3544, 3844, 3968, 4096, 4430, 4805, 4960, 5120, 7088, 7688, 7936, 8860, 9610, 9920, 10240, 13733, 14176, 15376, 15872, 17720, 19220, 19840, 20480, 27466, 28352, 30752, 31744, 35440, 38440, 39680, 54932, 56704, 61504, 63488, 68665, 70880, 76880, 79360, 109864, 113408, 123008, 126976, 137330, 141760, 153760, 158720, 219728, 226816, 246016, 274660, 283520, 307520, 317440, 425723, 439456, 453632, 492032, 549320, 567040, 615040, 634880, 851446, 878912, 907264, 984064, 1098640, 1134080, 1230080, 1702892, 1757824, 1814528, 1968128, 2128615, 2197280, 2268160, 2460160, 3405784, 3515648, 3936256, 4257230, 4394560, 4536320, 4920320, 6811568, 7031296, 8514460, 8789120, 9072640, 9840640, 13623136, 14062592, 17028920, 17578240, 19681280, 27246272, 28125184, 34057840, 35156480, 54492544, 56250368, 68115680, 70312960, 108985088, 136231360, 140625920, 217970176, 272462720, 281251840, 435940352, 544925440, 871880704, 1089850880, 1743761408, 2179701760, 4359403520, 8718807040]

約数ペア:

[(1, 8718807040), (2, 4359403520), (4, 2179701760), (5, 1743761408), (8, 1089850880), (10, 871880704), (16, 544925440), (20, 435940352), (31, 281251840), (32, 272462720), (40, 217970176), (62, 140625920), (64, 136231360), (80, 108985088), (124, 70312960), (128, 68115680), (155, 56250368), (160, 54492544), (248, 35156480), (256, 34057840), (310, 28125184), (320, 27246272), (443, 19681280), (496, 17578240), (512, 17028920), (620, 14062592), (640, 13623136), (886, 9840640), (961, 9072640), (992, 8789120), (1024, 8514460), (1240, 7031296), (1280, 6811568), (1772, 4920320), (1922, 4536320), (1984, 4394560), (2048, 4257230), (2215, 3936256), (2480, 3515648), (2560, 3405784), (3544, 2460160), (3844, 2268160), (3968, 2197280), (4096, 2128615), (4430, 1968128), (4805, 1814528), (4960, 1757824), (5120, 1702892), (7088, 1230080), (7688, 1134080), (7936, 1098640), (8860, 984064), (9610, 907264), (9920, 878912), (10240, 851446), (13733, 634880), (14176, 615040), (15376, 567040), (15872, 549320), (17720, 492032), (19220, 453632), (19840, 439456), (20480, 425723), (27466, 317440), (28352, 307520), (30752, 283520), (31744, 274660), (35440, 246016), (38440, 226816), (39680, 219728), (54932, 158720), (56704, 153760), (61504, 141760), (63488, 137330), (68665, 126976), (70880, 123008), (76880, 113408), (79360, 109864)]