2979740

素因数分解:

$2^2\times 5^1\times {\mathrm{383}}^1\times {\mathrm{389}}^1$

素因数の和:781

約数の個数: 24

約数和(自身を含む): 6289920

約数和(自身を除く): 3310180

約数列:

[1, 2, 4, 5, 10, 20, 383, 389, 766, 778, 1532, 1556, 1915, 1945, 3830, 3890, 7660, 7780, 148987, 297974, 595948, 744935, 1489870, 2979740]

約数ペア:

[(1, 2979740), (2, 1489870), (4, 744935), (5, 595948), (10, 297974), (20, 148987), (383, 7780), (389, 7660), (766, 3890), (778, 3830), (1532, 1945), (1556, 1915)]