20347084840

素因数分解:

$2^3\times 5^1\times {\mathrm{191}}^1\times {\mathrm{2663231}}^1$

素因数の和:2663433

約数の個数: 32

約数和(自身を含む): 46020648960

約数和(自身を除く): 25673564120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 191, 382, 764, 955, 1528, 1910, 3820, 7640, 2663231, 5326462, 10652924, 13316155, 21305848, 26632310, 53264620, 106529240, 508677121, 1017354242, 2034708484, 2543385605, 4069416968, 5086771210, 10173542420, 20347084840]

約数ペア:

[(1, 20347084840), (2, 10173542420), (4, 5086771210), (5, 4069416968), (8, 2543385605), (10, 2034708484), (20, 1017354242), (40, 508677121), (191, 106529240), (382, 53264620), (764, 26632310), (955, 21305848), (1528, 13316155), (1910, 10652924), (3820, 5326462), (7640, 2663231)]