78231140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{300889}}^1$

素因数の和:300911

約数の個数: 24

約数和(自身を含む): 176923320

約数和(自身を除く): 98692180

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 300889, 601778, 1203556, 1504445, 3008890, 3911557, 6017780, 7823114, 15646228, 19557785, 39115570, 78231140]

約数ペア:

[(1, 78231140), (2, 39115570), (4, 19557785), (5, 15646228), (10, 7823114), (13, 6017780), (20, 3911557), (26, 3008890), (52, 1504445), (65, 1203556), (130, 601778), (260, 300889)]