128257920

素因数分解:

$2^7\times 3^2\times 5^1\times 7^1\times {\mathrm{3181}}^1$

素因数の和:3213

約数の個数: 192

約数和(自身を含む): 506319840

約数和(自身を除く): 378061920

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, 128, 140, 144, 160, 168, 180, 192, 210, 224, 240, 252, 280, 288, 315, 320, 336, 360, 384, 420, 448, 480, 504, 560, 576, 630, 640, 672, 720, 840, 896, 960, 1008, 1120, 1152, 1260, 1344, 1440, 1680, 1920, 2016, 2240, 2520, 2688, 2880, 3181, 3360, 4032, 4480, 5040, 5760, 6362, 6720, 8064, 9543, 10080, 12724, 13440, 15905, 19086, 20160, 22267, 25448, 28629, 31810, 38172, 40320, 44534, 47715, 50896, 57258, 63620, 66801, 76344, 89068, 95430, 101792, 111335, 114516, 127240, 133602, 143145, 152688, 178136, 190860, 200403, 203584, 222670, 229032, 254480, 267204, 286290, 305376, 334005, 356272, 381720, 400806, 407168, 445340, 458064, 508960, 534408, 572580, 610752, 668010, 712544, 763440, 801612, 890680, 916128, 1002015, 1017920, 1068816, 1145160, 1221504, 1336020, 1425088, 1526880, 1603224, 1781360, 1832256, 2004030, 2035840, 2137632, 2290320, 2672040, 2850176, 3053760, 3206448, 3562720, 3664512, 4008060, 4275264, 4580640, 5344080, 6107520, 6412896, 7125440, 8016120, 8550528, 9161280, 10688160, 12825792, 14250880, 16032240, 18322560, 21376320, 25651584, 32064480, 42752640, 64128960, 128257920]

約数ペア:

[(1, 128257920), (2, 64128960), (3, 42752640), (4, 32064480), (5, 25651584), (6, 21376320), (7, 18322560), (8, 16032240), (9, 14250880), (10, 12825792), (12, 10688160), (14, 9161280), (15, 8550528), (16, 8016120), (18, 7125440), (20, 6412896), (21, 6107520), (24, 5344080), (28, 4580640), (30, 4275264), (32, 4008060), (35, 3664512), (36, 3562720), (40, 3206448), (42, 3053760), (45, 2850176), (48, 2672040), (56, 2290320), (60, 2137632), (63, 2035840), (64, 2004030), (70, 1832256), (72, 1781360), (80, 1603224), (84, 1526880), (90, 1425088), (96, 1336020), (105, 1221504), (112, 1145160), (120, 1068816), (126, 1017920), (128, 1002015), (140, 916128), (144, 890680), (160, 801612), (168, 763440), (180, 712544), (192, 668010), (210, 610752), (224, 572580), (240, 534408), (252, 508960), (280, 458064), (288, 445340), (315, 407168), (320, 400806), (336, 381720), (360, 356272), (384, 334005), (420, 305376), (448, 286290), (480, 267204), (504, 254480), (560, 229032), (576, 222670), (630, 203584), (640, 200403), (672, 190860), (720, 178136), (840, 152688), (896, 143145), (960, 133602), (1008, 127240), (1120, 114516), (1152, 111335), (1260, 101792), (1344, 95430), (1440, 89068), (1680, 76344), (1920, 66801), (2016, 63620), (2240, 57258), (2520, 50896), (2688, 47715), (2880, 44534), (3181, 40320), (3360, 38172), (4032, 31810), (4480, 28629), (5040, 25448), (5760, 22267), (6362, 20160), (6720, 19086), (8064, 15905), (9543, 13440), (10080, 12724)]