15980412878

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{420537181}}^1$

素因数の和:420537202

約数の個数: 8

約数和(自身を含む): 25232230920

約数和(自身を除く): 9251818042

約数列:

[1, 2, 19, 38, 420537181, 841074362, 7990206439, 15980412878]

約数ペア:

[(1, 15980412878), (2, 7990206439), (19, 841074362), (38, 420537181)]