255891495

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{617}}^1\times {\mathrm{643}}^1$

素因数の和:1311

約数の個数: 32

約数和(自身を含む): 420279552

約数和(自身を除く): 164388057

約数列:

[1, 3, 5, 15, 43, 129, 215, 617, 643, 645, 1851, 1929, 3085, 3215, 9255, 9645, 26531, 27649, 79593, 82947, 132655, 138245, 396731, 397965, 414735, 1190193, 1983655, 5950965, 17059433, 51178299, 85297165, 255891495]

約数ペア:

[(1, 255891495), (3, 85297165), (5, 51178299), (15, 17059433), (43, 5950965), (129, 1983655), (215, 1190193), (617, 414735), (643, 397965), (645, 396731), (1851, 138245), (1929, 132655), (3085, 82947), (3215, 79593), (9255, 27649), (9645, 26531)]