28779280

素因数分解:

$2^4\times 5^1\times {\mathrm{163}}^1\times {\mathrm{2207}}^1$

素因数の和:2383

約数の個数: 40

約数和(自身を含む): 67352832

約数和(自身を除く): 38573552

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 163, 326, 652, 815, 1304, 1630, 2207, 2608, 3260, 4414, 6520, 8828, 11035, 13040, 17656, 22070, 35312, 44140, 88280, 176560, 359741, 719482, 1438964, 1798705, 2877928, 3597410, 5755856, 7194820, 14389640, 28779280]

約数ペア:

[(1, 28779280), (2, 14389640), (4, 7194820), (5, 5755856), (8, 3597410), (10, 2877928), (16, 1798705), (20, 1438964), (40, 719482), (80, 359741), (163, 176560), (326, 88280), (652, 44140), (815, 35312), (1304, 22070), (1630, 17656), (2207, 13040), (2608, 11035), (3260, 8828), (4414, 6520)]