2164240

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2081}}^1$

素因数の和:2107

約数の個数: 40

約数和(自身を含む): 5421528

約数和(自身を除く): 3257288

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 2081, 4162, 8324, 10405, 16648, 20810, 27053, 33296, 41620, 54106, 83240, 108212, 135265, 166480, 216424, 270530, 432848, 541060, 1082120, 2164240]

約数ペア:

[(1, 2164240), (2, 1082120), (4, 541060), (5, 432848), (8, 270530), (10, 216424), (13, 166480), (16, 135265), (20, 108212), (26, 83240), (40, 54106), (52, 41620), (65, 33296), (80, 27053), (104, 20810), (130, 16648), (208, 10405), (260, 8324), (520, 4162), (1040, 2081)]