255976240

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{246131}}^1$

素因数の和:246157

約数の個数: 40

約数和(自身を含む): 640927728

約数和(自身を除く): 384951488

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 246131, 492262, 984524, 1230655, 1969048, 2461310, 3199703, 3938096, 4922620, 6399406, 9845240, 12798812, 15998515, 19690480, 25597624, 31997030, 51195248, 63994060, 127988120, 255976240]

約数ペア:

[(1, 255976240), (2, 127988120), (4, 63994060), (5, 51195248), (8, 31997030), (10, 25597624), (13, 19690480), (16, 15998515), (20, 12798812), (26, 9845240), (40, 6399406), (52, 4922620), (65, 3938096), (80, 3199703), (104, 2461310), (130, 1969048), (208, 1230655), (260, 984524), (520, 492262), (1040, 246131)]