81169920

素因数分解:

$2^9\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{271}}^1$

素因数の和:313

約数の個数: 240

約数和(自身を含む): 303855552

約数和(自身を除く): 222685632

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 32, 36, 39, 40, 45, 48, 52, 60, 64, 65, 72, 78, 80, 90, 96, 104, 117, 120, 128, 130, 144, 156, 160, 180, 192, 195, 208, 234, 240, 256, 260, 271, 288, 312, 320, 360, 384, 390, 416, 468, 480, 512, 520, 542, 576, 585, 624, 640, 720, 768, 780, 813, 832, 936, 960, 1040, 1084, 1152, 1170, 1248, 1280, 1355, 1440, 1536, 1560, 1626, 1664, 1872, 1920, 2080, 2168, 2304, 2340, 2439, 2496, 2560, 2710, 2880, 3120, 3252, 3328, 3523, 3744, 3840, 4065, 4160, 4336, 4608, 4680, 4878, 4992, 5420, 5760, 6240, 6504, 6656, 7046, 7488, 7680, 8130, 8320, 8672, 9360, 9756, 9984, 10569, 10840, 11520, 12195, 12480, 13008, 14092, 14976, 16260, 16640, 17344, 17615, 18720, 19512, 19968, 21138, 21680, 23040, 24390, 24960, 26016, 28184, 29952, 31707, 32520, 33280, 34688, 35230, 37440, 39024, 42276, 43360, 48780, 49920, 52032, 52845, 56368, 59904, 63414, 65040, 69376, 70460, 74880, 78048, 84552, 86720, 97560, 99840, 104064, 105690, 112736, 126828, 130080, 138752, 140920, 149760, 156096, 158535, 169104, 173440, 195120, 208128, 211380, 225472, 253656, 260160, 281840, 299520, 312192, 317070, 338208, 346880, 390240, 416256, 422760, 450944, 507312, 520320, 563680, 624384, 634140, 676416, 693760, 780480, 845520, 901888, 1014624, 1040640, 1127360, 1248768, 1268280, 1352832, 1560960, 1691040, 1803776, 2029248, 2081280, 2254720, 2536560, 2705664, 3121920, 3382080, 4058496, 4509440, 5073120, 5411328, 6243840, 6764160, 8116992, 9018880, 10146240, 13528320, 16233984, 20292480, 27056640, 40584960, 81169920]

約数ペア:

[(1, 81169920), (2, 40584960), (3, 27056640), (4, 20292480), (5, 16233984), (6, 13528320), (8, 10146240), (9, 9018880), (10, 8116992), (12, 6764160), (13, 6243840), (15, 5411328), (16, 5073120), (18, 4509440), (20, 4058496), (24, 3382080), (26, 3121920), (30, 2705664), (32, 2536560), (36, 2254720), (39, 2081280), (40, 2029248), (45, 1803776), (48, 1691040), (52, 1560960), (60, 1352832), (64, 1268280), (65, 1248768), (72, 1127360), (78, 1040640), (80, 1014624), (90, 901888), (96, 845520), (104, 780480), (117, 693760), (120, 676416), (128, 634140), (130, 624384), (144, 563680), (156, 520320), (160, 507312), (180, 450944), (192, 422760), (195, 416256), (208, 390240), (234, 346880), (240, 338208), (256, 317070), (260, 312192), (271, 299520), (288, 281840), (312, 260160), (320, 253656), (360, 225472), (384, 211380), (390, 208128), (416, 195120), (468, 173440), (480, 169104), (512, 158535), (520, 156096), (542, 149760), (576, 140920), (585, 138752), (624, 130080), (640, 126828), (720, 112736), (768, 105690), (780, 104064), (813, 99840), (832, 97560), (936, 86720), (960, 84552), (1040, 78048), (1084, 74880), (1152, 70460), (1170, 69376), (1248, 65040), (1280, 63414), (1355, 59904), (1440, 56368), (1536, 52845), (1560, 52032), (1626, 49920), (1664, 48780), (1872, 43360), (1920, 42276), (2080, 39024), (2168, 37440), (2304, 35230), (2340, 34688), (2439, 33280), (2496, 32520), (2560, 31707), (2710, 29952), (2880, 28184), (3120, 26016), (3252, 24960), (3328, 24390), (3523, 23040), (3744, 21680), (3840, 21138), (4065, 19968), (4160, 19512), (4336, 18720), (4608, 17615), (4680, 17344), (4878, 16640), (4992, 16260), (5420, 14976), (5760, 14092), (6240, 13008), (6504, 12480), (6656, 12195), (7046, 11520), (7488, 10840), (7680, 10569), (8130, 9984), (8320, 9756), (8672, 9360)]