28201120

素因数分解:

$2^5\times 5^1\times {\mathrm{43}}^1\times {\mathrm{4099}}^1$

素因数の和:4157

約数の個数: 48

約数和(自身を含む): 68191200

約数和(自身を除く): 39990080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 80, 86, 160, 172, 215, 344, 430, 688, 860, 1376, 1720, 3440, 4099, 6880, 8198, 16396, 20495, 32792, 40990, 65584, 81980, 131168, 163960, 176257, 327920, 352514, 655840, 705028, 881285, 1410056, 1762570, 2820112, 3525140, 5640224, 7050280, 14100560, 28201120]

約数ペア:

[(1, 28201120), (2, 14100560), (4, 7050280), (5, 5640224), (8, 3525140), (10, 2820112), (16, 1762570), (20, 1410056), (32, 881285), (40, 705028), (43, 655840), (80, 352514), (86, 327920), (160, 176257), (172, 163960), (215, 131168), (344, 81980), (430, 65584), (688, 40990), (860, 32792), (1376, 20495), (1720, 16396), (3440, 8198), (4099, 6880)]