68516240

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{65881}}^1$

素因数の和:65907

約数の個数: 40

約数和(自身を含む): 171556728

約数和(自身を除く): 103040488

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 65881, 131762, 263524, 329405, 527048, 658810, 856453, 1054096, 1317620, 1712906, 2635240, 3425812, 4282265, 5270480, 6851624, 8564530, 13703248, 17129060, 34258120, 68516240]

約数ペア:

[(1, 68516240), (2, 34258120), (4, 17129060), (5, 13703248), (8, 8564530), (10, 6851624), (13, 5270480), (16, 4282265), (20, 3425812), (26, 2635240), (40, 1712906), (52, 1317620), (65, 1054096), (80, 856453), (104, 658810), (130, 527048), (208, 329405), (260, 263524), (520, 131762), (1040, 65881)]