28896640

素因数分解:

$2^7\times 5^1\times {\mathrm{163}}^1\times {\mathrm{277}}^1$

素因数の和:459

約数の個数: 64

約数和(自身を含む): 69755760

約数和(自身を除く): 40859120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 163, 277, 320, 326, 554, 640, 652, 815, 1108, 1304, 1385, 1630, 2216, 2608, 2770, 3260, 4432, 5216, 5540, 6520, 8864, 10432, 11080, 13040, 17728, 20864, 22160, 26080, 35456, 44320, 45151, 52160, 88640, 90302, 104320, 177280, 180604, 225755, 361208, 451510, 722416, 903020, 1444832, 1806040, 2889664, 3612080, 5779328, 7224160, 14448320, 28896640]

約数ペア:

[(1, 28896640), (2, 14448320), (4, 7224160), (5, 5779328), (8, 3612080), (10, 2889664), (16, 1806040), (20, 1444832), (32, 903020), (40, 722416), (64, 451510), (80, 361208), (128, 225755), (160, 180604), (163, 177280), (277, 104320), (320, 90302), (326, 88640), (554, 52160), (640, 45151), (652, 44320), (815, 35456), (1108, 26080), (1304, 22160), (1385, 20864), (1630, 17728), (2216, 13040), (2608, 11080), (2770, 10432), (3260, 8864), (4432, 6520), (5216, 5540)]