19400140

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{2687}}^1$

素因数の和:2734

約数の個数: 36

約数和(自身を含む): 43013376

約数和(自身を除く): 23613236

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 361, 380, 722, 1444, 1805, 2687, 3610, 5374, 7220, 10748, 13435, 26870, 51053, 53740, 102106, 204212, 255265, 510530, 970007, 1021060, 1940014, 3880028, 4850035, 9700070, 19400140]

約数ペア:

[(1, 19400140), (2, 9700070), (4, 4850035), (5, 3880028), (10, 1940014), (19, 1021060), (20, 970007), (38, 510530), (76, 255265), (95, 204212), (190, 102106), (361, 53740), (380, 51053), (722, 26870), (1444, 13435), (1805, 10748), (2687, 7220), (3610, 5374)]