28437560

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{7039}}^1$

素因数の和:7151

約数の個数: 32

約数和(自身を含む): 64627200

約数和(自身を除く): 36189640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 7039, 14078, 28156, 35195, 56312, 70390, 140780, 281560, 710939, 1421878, 2843756, 3554695, 5687512, 7109390, 14218780, 28437560]

約数ペア:

[(1, 28437560), (2, 14218780), (4, 7109390), (5, 5687512), (8, 3554695), (10, 2843756), (20, 1421878), (40, 710939), (101, 281560), (202, 140780), (404, 70390), (505, 56312), (808, 35195), (1010, 28156), (2020, 14078), (4040, 7039)]