39356840

素因数分解:

$2^3\times 5^1\times {\mathrm{457}}^1\times {\mathrm{2153}}^1$

素因数の和:2621

約数の個数: 32

約数和(自身を含む): 88787880

約数和(自身を除く): 49431040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 457, 914, 1828, 2153, 2285, 3656, 4306, 4570, 8612, 9140, 10765, 17224, 18280, 21530, 43060, 86120, 983921, 1967842, 3935684, 4919605, 7871368, 9839210, 19678420, 39356840]

約数ペア:

[(1, 39356840), (2, 19678420), (4, 9839210), (5, 7871368), (8, 4919605), (10, 3935684), (20, 1967842), (40, 983921), (457, 86120), (914, 43060), (1828, 21530), (2153, 18280), (2285, 17224), (3656, 10765), (4306, 9140), (4570, 8612)]