81392640

素因数分解:

$2^{10}\times 3^1\times 5^1\times 7^1\times {\mathrm{757}}^1$

素因数の和:792

約数の個数: 176

約数和(自身を含む): 297912192

約数和(自身を除く): 216519552

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, 64, 70, 80, 84, 96, 105, 112, 120, 128, 140, 160, 168, 192, 210, 224, 240, 256, 280, 320, 336, 384, 420, 448, 480, 512, 560, 640, 672, 757, 768, 840, 896, 960, 1024, 1120, 1280, 1344, 1514, 1536, 1680, 1792, 1920, 2240, 2271, 2560, 2688, 3028, 3072, 3360, 3584, 3785, 3840, 4480, 4542, 5120, 5299, 5376, 6056, 6720, 7168, 7570, 7680, 8960, 9084, 10598, 10752, 11355, 12112, 13440, 15140, 15360, 15897, 17920, 18168, 21196, 21504, 22710, 24224, 26495, 26880, 30280, 31794, 35840, 36336, 42392, 45420, 48448, 52990, 53760, 60560, 63588, 72672, 79485, 84784, 90840, 96896, 105980, 107520, 121120, 127176, 145344, 158970, 169568, 181680, 193792, 211960, 242240, 254352, 290688, 317940, 339136, 363360, 387584, 423920, 484480, 508704, 581376, 635880, 678272, 726720, 775168, 847840, 968960, 1017408, 1162752, 1271760, 1356544, 1453440, 1695680, 1937920, 2034816, 2325504, 2543520, 2713088, 2906880, 3391360, 3875840, 4069632, 5087040, 5426176, 5813760, 6782720, 8139264, 10174080, 11627520, 13565440, 16278528, 20348160, 27130880, 40696320, 81392640]

約数ペア:

[(1, 81392640), (2, 40696320), (3, 27130880), (4, 20348160), (5, 16278528), (6, 13565440), (7, 11627520), (8, 10174080), (10, 8139264), (12, 6782720), (14, 5813760), (15, 5426176), (16, 5087040), (20, 4069632), (21, 3875840), (24, 3391360), (28, 2906880), (30, 2713088), (32, 2543520), (35, 2325504), (40, 2034816), (42, 1937920), (48, 1695680), (56, 1453440), (60, 1356544), (64, 1271760), (70, 1162752), (80, 1017408), (84, 968960), (96, 847840), (105, 775168), (112, 726720), (120, 678272), (128, 635880), (140, 581376), (160, 508704), (168, 484480), (192, 423920), (210, 387584), (224, 363360), (240, 339136), (256, 317940), (280, 290688), (320, 254352), (336, 242240), (384, 211960), (420, 193792), (448, 181680), (480, 169568), (512, 158970), (560, 145344), (640, 127176), (672, 121120), (757, 107520), (768, 105980), (840, 96896), (896, 90840), (960, 84784), (1024, 79485), (1120, 72672), (1280, 63588), (1344, 60560), (1514, 53760), (1536, 52990), (1680, 48448), (1792, 45420), (1920, 42392), (2240, 36336), (2271, 35840), (2560, 31794), (2688, 30280), (3028, 26880), (3072, 26495), (3360, 24224), (3584, 22710), (3785, 21504), (3840, 21196), (4480, 18168), (4542, 17920), (5120, 15897), (5299, 15360), (5376, 15140), (6056, 13440), (6720, 12112), (7168, 11355), (7570, 10752), (7680, 10598), (8960, 9084)]