80416180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{309293}}^1$

素因数の和:309315

約数の個数: 24

約数和(自身を含む): 181864872

約数和(自身を除く): 101448692

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 309293, 618586, 1237172, 1546465, 3092930, 4020809, 6185860, 8041618, 16083236, 20104045, 40208090, 80416180]

約数ペア:

[(1, 80416180), (2, 40208090), (4, 20104045), (5, 16083236), (10, 8041618), (13, 6185860), (20, 4020809), (26, 3092930), (52, 1546465), (65, 1237172), (130, 618586), (260, 309293)]