21460440

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{4159}}^1$

素因数の和:4216

約数の個数: 64

約数和(自身を含む): 65894400

約数和(自身を除く): 44433960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 43, 60, 86, 120, 129, 172, 215, 258, 344, 430, 516, 645, 860, 1032, 1290, 1720, 2580, 4159, 5160, 8318, 12477, 16636, 20795, 24954, 33272, 41590, 49908, 62385, 83180, 99816, 124770, 166360, 178837, 249540, 357674, 499080, 536511, 715348, 894185, 1073022, 1430696, 1788370, 2146044, 2682555, 3576740, 4292088, 5365110, 7153480, 10730220, 21460440]

約数ペア:

[(1, 21460440), (2, 10730220), (3, 7153480), (4, 5365110), (5, 4292088), (6, 3576740), (8, 2682555), (10, 2146044), (12, 1788370), (15, 1430696), (20, 1073022), (24, 894185), (30, 715348), (40, 536511), (43, 499080), (60, 357674), (86, 249540), (120, 178837), (129, 166360), (172, 124770), (215, 99816), (258, 83180), (344, 62385), (430, 49908), (516, 41590), (645, 33272), (860, 24954), (1032, 20795), (1290, 16636), (1720, 12477), (2580, 8318), (4159, 5160)]