26990180

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{27541}}^1$

素因数の和:27564

約数の個数: 36

約数和(自身を含む): 65935548

約数和(自身を除く): 38945368

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 27541, 55082, 110164, 137705, 192787, 275410, 385574, 550820, 771148, 963935, 1349509, 1927870, 2699018, 3855740, 5398036, 6747545, 13495090, 26990180]

約数ペア:

[(1, 26990180), (2, 13495090), (4, 6747545), (5, 5398036), (7, 3855740), (10, 2699018), (14, 1927870), (20, 1349509), (28, 963935), (35, 771148), (49, 550820), (70, 385574), (98, 275410), (140, 192787), (196, 137705), (245, 110164), (490, 55082), (980, 27541)]