80409290

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{607}}^1\times {\mathrm{1019}}^1$

素因数の和:1646

約数の個数: 32

約数和(自身を含む): 156280320

約数和(自身を除く): 75871030

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 607, 1019, 1214, 2038, 3035, 5095, 6070, 7891, 10190, 13247, 15782, 26494, 39455, 66235, 78910, 132470, 618533, 1237066, 3092665, 6185330, 8040929, 16081858, 40204645, 80409290]

約数ペア:

[(1, 80409290), (2, 40204645), (5, 16081858), (10, 8040929), (13, 6185330), (26, 3092665), (65, 1237066), (130, 618533), (607, 132470), (1019, 78910), (1214, 66235), (2038, 39455), (3035, 26494), (5095, 15782), (6070, 13247), (7891, 10190)]