80164240

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{77081}}^1$

素因数の和:77107

約数の個数: 40

約数和(自身を含む): 200721528

約数和(自身を除く): 120557288

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 77081, 154162, 308324, 385405, 616648, 770810, 1002053, 1233296, 1541620, 2004106, 3083240, 4008212, 5010265, 6166480, 8016424, 10020530, 16032848, 20041060, 40082120, 80164240]

約数ペア:

[(1, 80164240), (2, 40082120), (4, 20041060), (5, 16032848), (8, 10020530), (10, 8016424), (13, 6166480), (16, 5010265), (20, 4008212), (26, 3083240), (40, 2004106), (52, 1541620), (65, 1233296), (80, 1002053), (104, 770810), (130, 616648), (208, 385405), (260, 308324), (520, 154162), (1040, 77081)]