313680920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{1120289}}^1$

素因数の和:1120307

約数の個数: 32

約数和(自身を含む): 806608800

約数和(自身を除く): 492927880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 1120289, 2240578, 4481156, 5601445, 7842023, 8962312, 11202890, 15684046, 22405780, 31368092, 39210115, 44811560, 62736184, 78420230, 156840460, 313680920]

約数ペア:

[(1, 313680920), (2, 156840460), (4, 78420230), (5, 62736184), (7, 44811560), (8, 39210115), (10, 31368092), (14, 22405780), (20, 15684046), (28, 11202890), (35, 8962312), (40, 7842023), (56, 5601445), (70, 4481156), (140, 2240578), (280, 1120289)]