81684260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{583459}}^1$

素因数の和:583475

約数の個数: 24

約数和(自身を含む): 196042560

約数和(自身を除く): 114358300

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 583459, 1166918, 2333836, 2917295, 4084213, 5834590, 8168426, 11669180, 16336852, 20421065, 40842130, 81684260]

約数ペア:

[(1, 81684260), (2, 40842130), (4, 20421065), (5, 16336852), (7, 11669180), (10, 8168426), (14, 5834590), (20, 4084213), (28, 2917295), (35, 2333836), (70, 1166918), (140, 583459)]