786980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{109}}^1$

素因数の和:156

約数の個数: 36

約数和(自身を含む): 1760220

約数和(自身を除く): 973240

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 109, 190, 218, 361, 380, 436, 545, 722, 1090, 1444, 1805, 2071, 2180, 3610, 4142, 7220, 8284, 10355, 20710, 39349, 41420, 78698, 157396, 196745, 393490, 786980]

約数ペア:

[(1, 786980), (2, 393490), (4, 196745), (5, 157396), (10, 78698), (19, 41420), (20, 39349), (38, 20710), (76, 10355), (95, 8284), (109, 7220), (190, 4142), (218, 3610), (361, 2180), (380, 2071), (436, 1805), (545, 1444), (722, 1090)]