81505190

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{626963}}^1$

素因数の和:626983

約数の個数: 16

約数和(自身を含む): 157994928

約数和(自身を除く): 76489738

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 626963, 1253926, 3134815, 6269630, 8150519, 16301038, 40752595, 81505190]

約数ペア:

[(1, 81505190), (2, 40752595), (5, 16301038), (10, 8150519), (13, 6269630), (26, 3134815), (65, 1253926), (130, 626963)]