21167715080

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{389}}^1\times {\mathrm{9787}}^1$

素因数の和:10326

約数の個数: 64

約数和(自身を含む): 48098232000

約数和(自身を除く): 26930516920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 389, 556, 695, 778, 1112, 1390, 1556, 1945, 2780, 3112, 3890, 5560, 7780, 9787, 15560, 19574, 39148, 48935, 54071, 78296, 97870, 108142, 195740, 216284, 270355, 391480, 432568, 540710, 1081420, 1360393, 2162840, 2720786, 3807143, 5441572, 6801965, 7614286, 10883144, 13603930, 15228572, 19035715, 27207860, 30457144, 38071430, 54415720, 76142860, 152285720, 529192877, 1058385754, 2116771508, 2645964385, 4233543016, 5291928770, 10583857540, 21167715080]

約数ペア:

[(1, 21167715080), (2, 10583857540), (4, 5291928770), (5, 4233543016), (8, 2645964385), (10, 2116771508), (20, 1058385754), (40, 529192877), (139, 152285720), (278, 76142860), (389, 54415720), (556, 38071430), (695, 30457144), (778, 27207860), (1112, 19035715), (1390, 15228572), (1556, 13603930), (1945, 10883144), (2780, 7614286), (3112, 6801965), (3890, 5441572), (5560, 3807143), (7780, 2720786), (9787, 2162840), (15560, 1360393), (19574, 1081420), (39148, 540710), (48935, 432568), (54071, 391480), (78296, 270355), (97870, 216284), (108142, 195740)]