63708440

素因数分解:

$2^3\times 5^1\times {\mathrm{643}}^1\times {\mathrm{2477}}^1$

素因数の和:3131

約数の個数: 32

約数和(自身を含む): 143624880

約数和(自身を除く): 79916440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 643, 1286, 2477, 2572, 3215, 4954, 5144, 6430, 9908, 12385, 12860, 19816, 24770, 25720, 49540, 99080, 1592711, 3185422, 6370844, 7963555, 12741688, 15927110, 31854220, 63708440]

約数ペア:

[(1, 63708440), (2, 31854220), (4, 15927110), (5, 12741688), (8, 7963555), (10, 6370844), (20, 3185422), (40, 1592711), (643, 99080), (1286, 49540), (2477, 25720), (2572, 24770), (3215, 19816), (4954, 12860), (5144, 12385), (6430, 9908)]