512980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1973}}^1$

素因数の和:1995

約数の個数: 24

約数和(自身を含む): 1160712

約数和(自身を除く): 647732

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1973, 3946, 7892, 9865, 19730, 25649, 39460, 51298, 102596, 128245, 256490, 512980]

約数ペア:

[(1, 512980), (2, 256490), (4, 128245), (5, 102596), (10, 51298), (13, 39460), (20, 25649), (26, 19730), (52, 9865), (65, 7892), (130, 3946), (260, 1973)]