81788420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{584203}}^1$

素因数の和:584219

約数の個数: 24

約数和(自身を含む): 196292544

約数和(自身を除く): 114504124

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 584203, 1168406, 2336812, 2921015, 4089421, 5842030, 8178842, 11684060, 16357684, 20447105, 40894210, 81788420]

約数ペア:

[(1, 81788420), (2, 40894210), (4, 20447105), (5, 16357684), (7, 11684060), (10, 8178842), (14, 5842030), (20, 4089421), (28, 2921015), (35, 2336812), (70, 1168406), (140, 584203)]