138600980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{431}}^1\times {\mathrm{2297}}^1$

素因数の和:2744

約数の個数: 48

約数和(自身を含む): 333559296

約数和(自身を除く): 194958316

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 431, 862, 1724, 2155, 2297, 3017, 4310, 4594, 6034, 8620, 9188, 11485, 12068, 15085, 16079, 22970, 30170, 32158, 45940, 60340, 64316, 80395, 160790, 321580, 990007, 1980014, 3960028, 4950035, 6930049, 9900070, 13860098, 19800140, 27720196, 34650245, 69300490, 138600980]

約数ペア:

[(1, 138600980), (2, 69300490), (4, 34650245), (5, 27720196), (7, 19800140), (10, 13860098), (14, 9900070), (20, 6930049), (28, 4950035), (35, 3960028), (70, 1980014), (140, 990007), (431, 321580), (862, 160790), (1724, 80395), (2155, 64316), (2297, 60340), (3017, 45940), (4310, 32158), (4594, 30170), (6034, 22970), (8620, 16079), (9188, 15085), (11485, 12068)]