128150120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{457679}}^1$

素因数の和:457697

約数の個数: 32

約数和(自身を含む): 329529600

約数和(自身を除く): 201379480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 457679, 915358, 1830716, 2288395, 3203753, 3661432, 4576790, 6407506, 9153580, 12815012, 16018765, 18307160, 25630024, 32037530, 64075060, 128150120]

約数ペア:

[(1, 128150120), (2, 64075060), (4, 32037530), (5, 25630024), (7, 18307160), (8, 16018765), (10, 12815012), (14, 9153580), (20, 6407506), (28, 4576790), (35, 3661432), (40, 3203753), (56, 2288395), (70, 1830716), (140, 915358), (280, 457679)]