28326680

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^2\times {\mathrm{383}}^1$

素因数の和:480

約数の個数: 48

約数和(自身を含む): 65422080

約数和(自身を除く): 37095400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 383, 430, 766, 860, 1532, 1720, 1849, 1915, 3064, 3698, 3830, 7396, 7660, 9245, 14792, 15320, 16469, 18490, 32938, 36980, 65876, 73960, 82345, 131752, 164690, 329380, 658760, 708167, 1416334, 2832668, 3540835, 5665336, 7081670, 14163340, 28326680]

約数ペア:

[(1, 28326680), (2, 14163340), (4, 7081670), (5, 5665336), (8, 3540835), (10, 2832668), (20, 1416334), (40, 708167), (43, 658760), (86, 329380), (172, 164690), (215, 131752), (344, 82345), (383, 73960), (430, 65876), (766, 36980), (860, 32938), (1532, 18490), (1720, 16469), (1849, 15320), (1915, 14792), (3064, 9245), (3698, 7660), (3830, 7396)]