18813850

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{433}}^1$

素因数の和:535

約数の個数: 48

約数和(自身を含む): 38747520

約数和(自身を除く): 19933670

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 79, 110, 158, 275, 395, 433, 550, 790, 866, 869, 1738, 1975, 2165, 3950, 4330, 4345, 4763, 8690, 9526, 10825, 21650, 21725, 23815, 34207, 43450, 47630, 68414, 119075, 171035, 238150, 342070, 376277, 752554, 855175, 1710350, 1881385, 3762770, 9406925, 18813850]

約数ペア:

[(1, 18813850), (2, 9406925), (5, 3762770), (10, 1881385), (11, 1710350), (22, 855175), (25, 752554), (50, 376277), (55, 342070), (79, 238150), (110, 171035), (158, 119075), (275, 68414), (395, 47630), (433, 43450), (550, 34207), (790, 23815), (866, 21725), (869, 21650), (1738, 10825), (1975, 9526), (2165, 8690), (3950, 4763), (4330, 4345)]