80814890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{3221}}^1$

素因数の和:3434

約数の個数: 32

約数和(自身を含む): 157517136

約数和(自身を除く): 76702246

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 193, 386, 965, 1930, 2509, 3221, 5018, 6442, 12545, 16105, 25090, 32210, 41873, 83746, 209365, 418730, 621653, 1243306, 3108265, 6216530, 8081489, 16162978, 40407445, 80814890]

約数ペア:

[(1, 80814890), (2, 40407445), (5, 16162978), (10, 8081489), (13, 6216530), (26, 3108265), (65, 1243306), (130, 621653), (193, 418730), (386, 209365), (965, 83746), (1930, 41873), (2509, 32210), (3221, 25090), (5018, 16105), (6442, 12545)]