81799480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{292141}}^1$

素因数の和:292159

約数の個数: 32

約数和(自身を含む): 210342240

約数和(自身を除く): 128542760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 292141, 584282, 1168564, 1460705, 2044987, 2337128, 2921410, 4089974, 5842820, 8179948, 10224935, 11685640, 16359896, 20449870, 40899740, 81799480]

約数ペア:

[(1, 81799480), (2, 40899740), (4, 20449870), (5, 16359896), (7, 11685640), (8, 10224935), (10, 8179948), (14, 5842820), (20, 4089974), (28, 2921410), (35, 2337128), (40, 2044987), (56, 1460705), (70, 1168564), (140, 584282), (280, 292141)]