249084920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{889589}}^1$

素因数の和:889607

約数の個数: 32

約数和(自身を含む): 640504800

約数和(自身を除く): 391419880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 889589, 1779178, 3558356, 4447945, 6227123, 7116712, 8895890, 12454246, 17791780, 24908492, 31135615, 35583560, 49816984, 62271230, 124542460, 249084920]

約数ペア:

[(1, 249084920), (2, 124542460), (4, 62271230), (5, 49816984), (7, 35583560), (8, 31135615), (10, 24908492), (14, 17791780), (20, 12454246), (28, 8895890), (35, 7116712), (40, 6227123), (56, 4447945), (70, 3558356), (140, 1779178), (280, 889589)]