161603960

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{2011}}^1$

素因数の和:2077

約数の個数: 96

約数和(自身を含む): 433505520

約数和(自身を除く): 271901560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 41, 49, 56, 70, 82, 98, 140, 164, 196, 205, 245, 280, 287, 328, 392, 410, 490, 574, 820, 980, 1148, 1435, 1640, 1960, 2009, 2011, 2296, 2870, 4018, 4022, 5740, 8036, 8044, 10045, 10055, 11480, 14077, 16072, 16088, 20090, 20110, 28154, 40180, 40220, 56308, 70385, 80360, 80440, 82451, 98539, 112616, 140770, 164902, 197078, 281540, 329804, 394156, 412255, 492695, 563080, 577157, 659608, 788312, 824510, 985390, 1154314, 1649020, 1970780, 2308628, 2885785, 3298040, 3941560, 4040099, 4617256, 5771570, 8080198, 11543140, 16160396, 20200495, 23086280, 32320792, 40400990, 80801980, 161603960]

約数ペア:

[(1, 161603960), (2, 80801980), (4, 40400990), (5, 32320792), (7, 23086280), (8, 20200495), (10, 16160396), (14, 11543140), (20, 8080198), (28, 5771570), (35, 4617256), (40, 4040099), (41, 3941560), (49, 3298040), (56, 2885785), (70, 2308628), (82, 1970780), (98, 1649020), (140, 1154314), (164, 985390), (196, 824510), (205, 788312), (245, 659608), (280, 577157), (287, 563080), (328, 492695), (392, 412255), (410, 394156), (490, 329804), (574, 281540), (820, 197078), (980, 164902), (1148, 140770), (1435, 112616), (1640, 98539), (1960, 82451), (2009, 80440), (2011, 80360), (2296, 70385), (2870, 56308), (4018, 40220), (4022, 40180), (5740, 28154), (8036, 20110), (8044, 20090), (10045, 16088), (10055, 16072), (11480, 14077)]