81444480

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{251}}^1$

素因数の和:299

約数の個数: 192

約数和(自身を含む): 282229920

約数和(自身を除く): 200785440

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 64, 65, 78, 80, 96, 104, 120, 128, 130, 156, 160, 169, 192, 195, 208, 240, 251, 260, 312, 320, 338, 384, 390, 416, 480, 502, 507, 520, 624, 640, 676, 753, 780, 832, 845, 960, 1004, 1014, 1040, 1248, 1255, 1352, 1506, 1560, 1664, 1690, 1920, 2008, 2028, 2080, 2496, 2510, 2535, 2704, 3012, 3120, 3263, 3380, 3765, 4016, 4056, 4160, 4992, 5020, 5070, 5408, 6024, 6240, 6526, 6760, 7530, 8032, 8112, 8320, 9789, 10040, 10140, 10816, 12048, 12480, 13052, 13520, 15060, 16064, 16224, 16315, 19578, 20080, 20280, 21632, 24096, 24960, 26104, 27040, 30120, 32128, 32448, 32630, 39156, 40160, 40560, 42419, 48192, 48945, 52208, 54080, 60240, 64896, 65260, 78312, 80320, 81120, 84838, 96384, 97890, 104416, 108160, 120480, 127257, 130520, 156624, 160640, 162240, 169676, 195780, 208832, 212095, 240960, 254514, 261040, 313248, 324480, 339352, 391560, 417664, 424190, 481920, 509028, 522080, 626496, 636285, 678704, 783120, 848380, 1018056, 1044160, 1252992, 1272570, 1357408, 1566240, 1696760, 2036112, 2088320, 2545140, 2714816, 3132480, 3393520, 4072224, 5090280, 5429632, 6264960, 6787040, 8144448, 10180560, 13574080, 16288896, 20361120, 27148160, 40722240, 81444480]

約数ペア:

[(1, 81444480), (2, 40722240), (3, 27148160), (4, 20361120), (5, 16288896), (6, 13574080), (8, 10180560), (10, 8144448), (12, 6787040), (13, 6264960), (15, 5429632), (16, 5090280), (20, 4072224), (24, 3393520), (26, 3132480), (30, 2714816), (32, 2545140), (39, 2088320), (40, 2036112), (48, 1696760), (52, 1566240), (60, 1357408), (64, 1272570), (65, 1252992), (78, 1044160), (80, 1018056), (96, 848380), (104, 783120), (120, 678704), (128, 636285), (130, 626496), (156, 522080), (160, 509028), (169, 481920), (192, 424190), (195, 417664), (208, 391560), (240, 339352), (251, 324480), (260, 313248), (312, 261040), (320, 254514), (338, 240960), (384, 212095), (390, 208832), (416, 195780), (480, 169676), (502, 162240), (507, 160640), (520, 156624), (624, 130520), (640, 127257), (676, 120480), (753, 108160), (780, 104416), (832, 97890), (845, 96384), (960, 84838), (1004, 81120), (1014, 80320), (1040, 78312), (1248, 65260), (1255, 64896), (1352, 60240), (1506, 54080), (1560, 52208), (1664, 48945), (1690, 48192), (1920, 42419), (2008, 40560), (2028, 40160), (2080, 39156), (2496, 32630), (2510, 32448), (2535, 32128), (2704, 30120), (3012, 27040), (3120, 26104), (3263, 24960), (3380, 24096), (3765, 21632), (4016, 20280), (4056, 20080), (4160, 19578), (4992, 16315), (5020, 16224), (5070, 16064), (5408, 15060), (6024, 13520), (6240, 13052), (6526, 12480), (6760, 12048), (7530, 10816), (8032, 10140), (8112, 10040), (8320, 9789)]