311132920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{1111189}}^1$

素因数の和:1111207

約数の個数: 32

約数和(自身を含む): 800056800

約数和(自身を除く): 488923880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 1111189, 2222378, 4444756, 5555945, 7778323, 8889512, 11111890, 15556646, 22223780, 31113292, 38891615, 44447560, 62226584, 77783230, 155566460, 311132920]

約数ペア:

[(1, 311132920), (2, 155566460), (4, 77783230), (5, 62226584), (7, 44447560), (8, 38891615), (10, 31113292), (14, 22223780), (20, 15556646), (28, 11111890), (35, 8889512), (40, 7778323), (56, 5555945), (70, 4444756), (140, 2222378), (280, 1111189)]