81668160

素因数分解:

$2^6\times 3^2\times 5^1\times 7^1\times {\mathrm{4051}}^1$

素因数の和:4081

約数の個数: 168

約数和(自身を含む): 321112896

約数和(自身を除く): 239444736

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 140, 144, 160, 168, 180, 192, 210, 224, 240, 252, 280, 288, 315, 320, 336, 360, 420, 448, 480, 504, 560, 576, 630, 672, 720, 840, 960, 1008, 1120, 1260, 1344, 1440, 1680, 2016, 2240, 2520, 2880, 3360, 4032, 4051, 5040, 6720, 8102, 10080, 12153, 16204, 20160, 20255, 24306, 28357, 32408, 36459, 40510, 48612, 56714, 60765, 64816, 72918, 81020, 85071, 97224, 113428, 121530, 129632, 141785, 145836, 162040, 170142, 182295, 194448, 226856, 243060, 255213, 259264, 283570, 291672, 324080, 340284, 364590, 388896, 425355, 453712, 486120, 510426, 567140, 583344, 648160, 680568, 729180, 777792, 850710, 907424, 972240, 1020852, 1134280, 1166688, 1276065, 1296320, 1361136, 1458360, 1701420, 1814848, 1944480, 2041704, 2268560, 2333376, 2552130, 2722272, 2916720, 3402840, 3888960, 4083408, 4537120, 5104260, 5444544, 5833440, 6805680, 8166816, 9074240, 10208520, 11666880, 13611360, 16333632, 20417040, 27222720, 40834080, 81668160]

約数ペア:

[(1, 81668160), (2, 40834080), (3, 27222720), (4, 20417040), (5, 16333632), (6, 13611360), (7, 11666880), (8, 10208520), (9, 9074240), (10, 8166816), (12, 6805680), (14, 5833440), (15, 5444544), (16, 5104260), (18, 4537120), (20, 4083408), (21, 3888960), (24, 3402840), (28, 2916720), (30, 2722272), (32, 2552130), (35, 2333376), (36, 2268560), (40, 2041704), (42, 1944480), (45, 1814848), (48, 1701420), (56, 1458360), (60, 1361136), (63, 1296320), (64, 1276065), (70, 1166688), (72, 1134280), (80, 1020852), (84, 972240), (90, 907424), (96, 850710), (105, 777792), (112, 729180), (120, 680568), (126, 648160), (140, 583344), (144, 567140), (160, 510426), (168, 486120), (180, 453712), (192, 425355), (210, 388896), (224, 364590), (240, 340284), (252, 324080), (280, 291672), (288, 283570), (315, 259264), (320, 255213), (336, 243060), (360, 226856), (420, 194448), (448, 182295), (480, 170142), (504, 162040), (560, 145836), (576, 141785), (630, 129632), (672, 121530), (720, 113428), (840, 97224), (960, 85071), (1008, 81020), (1120, 72918), (1260, 64816), (1344, 60765), (1440, 56714), (1680, 48612), (2016, 40510), (2240, 36459), (2520, 32408), (2880, 28357), (3360, 24306), (4032, 20255), (4051, 20160), (5040, 16204), (6720, 12153), (8102, 10080)]