28315720

素因数分解:

$2^3\times 5^1\times {\mathrm{457}}^1\times {\mathrm{1549}}^1$

素因数の和:2017

約数の個数: 32

約数和(自身を含む): 63891000

約数和(自身を除く): 35575280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 457, 914, 1549, 1828, 2285, 3098, 3656, 4570, 6196, 7745, 9140, 12392, 15490, 18280, 30980, 61960, 707893, 1415786, 2831572, 3539465, 5663144, 7078930, 14157860, 28315720]

約数ペア:

[(1, 28315720), (2, 14157860), (4, 7078930), (5, 5663144), (8, 3539465), (10, 2831572), (20, 1415786), (40, 707893), (457, 61960), (914, 30980), (1549, 18280), (1828, 15490), (2285, 12392), (3098, 9140), (3656, 7745), (4570, 6196)]