521128220

素因数分解:

$2^2\times 5^1\times {\mathrm{191}}^1\times {\mathrm{136421}}^1$

素因数の和:136621

約数の個数: 24

約数和(自身を含む): 1100107008

約数和(自身を除く): 578978788

約数列:

[1, 2, 4, 5, 10, 20, 191, 382, 764, 955, 1910, 3820, 136421, 272842, 545684, 682105, 1364210, 2728420, 26056411, 52112822, 104225644, 130282055, 260564110, 521128220]

約数ペア:

[(1, 521128220), (2, 260564110), (4, 130282055), (5, 104225644), (10, 52112822), (20, 26056411), (191, 2728420), (382, 1364210), (764, 682105), (955, 545684), (1910, 272842), (3820, 136421)]