274960

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{491}}^1$

素因数の和:511

約数の個数: 40

約数和(自身を含む): 732096

約数和(自身を除く): 457136

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 491, 560, 982, 1964, 2455, 3437, 3928, 4910, 6874, 7856, 9820, 13748, 17185, 19640, 27496, 34370, 39280, 54992, 68740, 137480, 274960]

約数ペア:

[(1, 274960), (2, 137480), (4, 68740), (5, 54992), (7, 39280), (8, 34370), (10, 27496), (14, 19640), (16, 17185), (20, 13748), (28, 9820), (35, 7856), (40, 6874), (56, 4910), (70, 3928), (80, 3437), (112, 2455), (140, 1964), (280, 982), (491, 560)]