128165520

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{76289}}^1$

素因数の和:76312

約数の個数: 80

約数和(自身を含む): 454078080

約数和(自身を除く): 325912560

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 76289, 152578, 228867, 305156, 381445, 457734, 534023, 610312, 762890, 915468, 1068046, 1144335, 1220624, 1525780, 1602069, 1830936, 2136092, 2288670, 2670115, 3051560, 3204138, 3661872, 4272184, 4577340, 5340230, 6103120, 6408276, 8010345, 8544368, 9154680, 10680460, 12816552, 16020690, 18309360, 21360920, 25633104, 32041380, 42721840, 64082760, 128165520]

約数ペア:

[(1, 128165520), (2, 64082760), (3, 42721840), (4, 32041380), (5, 25633104), (6, 21360920), (7, 18309360), (8, 16020690), (10, 12816552), (12, 10680460), (14, 9154680), (15, 8544368), (16, 8010345), (20, 6408276), (21, 6103120), (24, 5340230), (28, 4577340), (30, 4272184), (35, 3661872), (40, 3204138), (42, 3051560), (48, 2670115), (56, 2288670), (60, 2136092), (70, 1830936), (80, 1602069), (84, 1525780), (105, 1220624), (112, 1144335), (120, 1068046), (140, 915468), (168, 762890), (210, 610312), (240, 534023), (280, 457734), (336, 381445), (420, 305156), (560, 228867), (840, 152578), (1680, 76289)]