128505910

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{76039}}^1$

素因数の和:76072

約数の個数: 24

約数和(自身を含む): 250475760

約数和(自身を除く): 121969850

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1690, 76039, 152078, 380195, 760390, 988507, 1977014, 4942535, 9885070, 12850591, 25701182, 64252955, 128505910]

約数ペア:

[(1, 128505910), (2, 64252955), (5, 25701182), (10, 12850591), (13, 9885070), (26, 4942535), (65, 1977014), (130, 988507), (169, 760390), (338, 380195), (845, 152078), (1690, 76039)]