82187920

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{389}}^1$

素因数の和:560

約数の個数: 80

約数和(自身を含む): 203112000

約数和(自身を除く): 120924080

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 139, 152, 190, 278, 304, 380, 389, 556, 695, 760, 778, 1112, 1390, 1520, 1556, 1945, 2224, 2641, 2780, 3112, 3890, 5282, 5560, 6224, 7391, 7780, 10564, 11120, 13205, 14782, 15560, 21128, 26410, 29564, 31120, 36955, 42256, 52820, 54071, 59128, 73910, 105640, 108142, 118256, 147820, 211280, 216284, 270355, 295640, 432568, 540710, 591280, 865136, 1027349, 1081420, 2054698, 2162840, 4109396, 4325680, 5136745, 8218792, 10273490, 16437584, 20546980, 41093960, 82187920]

約数ペア:

[(1, 82187920), (2, 41093960), (4, 20546980), (5, 16437584), (8, 10273490), (10, 8218792), (16, 5136745), (19, 4325680), (20, 4109396), (38, 2162840), (40, 2054698), (76, 1081420), (80, 1027349), (95, 865136), (139, 591280), (152, 540710), (190, 432568), (278, 295640), (304, 270355), (380, 216284), (389, 211280), (556, 147820), (695, 118256), (760, 108142), (778, 105640), (1112, 73910), (1390, 59128), (1520, 54071), (1556, 52820), (1945, 42256), (2224, 36955), (2641, 31120), (2780, 29564), (3112, 26410), (3890, 21128), (5282, 15560), (5560, 14782), (6224, 13205), (7391, 11120), (7780, 10564)]