81774140

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{83443}}^1$

素因数の和:83466

約数の個数: 36

約数和(自身を含む): 199764936

約数和(自身を除く): 117990796

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 83443, 166886, 333772, 417215, 584101, 834430, 1168202, 1668860, 2336404, 2920505, 4088707, 5841010, 8177414, 11682020, 16354828, 20443535, 40887070, 81774140]

約数ペア:

[(1, 81774140), (2, 40887070), (4, 20443535), (5, 16354828), (7, 11682020), (10, 8177414), (14, 5841010), (20, 4088707), (28, 2920505), (35, 2336404), (49, 1668860), (70, 1168202), (98, 834430), (140, 584101), (196, 417215), (245, 333772), (490, 166886), (980, 83443)]