28277260

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{1627}}^1$

素因数の和:1726

約数の個数: 48

約数和(自身を含む): 65640960

約数和(自身を除く): 37363700

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 79, 110, 158, 220, 316, 395, 790, 869, 1580, 1627, 1738, 3254, 3476, 4345, 6508, 8135, 8690, 16270, 17380, 17897, 32540, 35794, 71588, 89485, 128533, 178970, 257066, 357940, 514132, 642665, 1285330, 1413863, 2570660, 2827726, 5655452, 7069315, 14138630, 28277260]

約数ペア:

[(1, 28277260), (2, 14138630), (4, 7069315), (5, 5655452), (10, 2827726), (11, 2570660), (20, 1413863), (22, 1285330), (44, 642665), (55, 514132), (79, 357940), (110, 257066), (158, 178970), (220, 128533), (316, 89485), (395, 71588), (790, 35794), (869, 32540), (1580, 17897), (1627, 17380), (1738, 16270), (3254, 8690), (3476, 8135), (4345, 6508)]