42721840

素因数分解:

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

素因数の和:76309

約数の個数: 40

約数和(自身を含む): 113519520

約数和(自身を除く): 70797680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 76289, 152578, 305156, 381445, 534023, 610312, 762890, 1068046, 1220624, 1525780, 2136092, 2670115, 3051560, 4272184, 5340230, 6103120, 8544368, 10680460, 21360920, 42721840]

約数ペア:

[(1, 42721840), (2, 21360920), (4, 10680460), (5, 8544368), (7, 6103120), (8, 5340230), (10, 4272184), (14, 3051560), (16, 2670115), (20, 2136092), (28, 1525780), (35, 1220624), (40, 1068046), (56, 762890), (70, 610312), (80, 534023), (112, 381445), (140, 305156), (280, 152578), (560, 76289)]