1915691320

素因数分解:

$2^3\times 5^1\times {\mathrm{2389}}^1\times {\mathrm{20047}}^1$

素因数の和:22447

約数の個数: 32

約数和(自身を含む): 4312324800

約数和(自身を除く): 2396633480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2389, 4778, 9556, 11945, 19112, 20047, 23890, 40094, 47780, 80188, 95560, 100235, 160376, 200470, 400940, 801880, 47892283, 95784566, 191569132, 239461415, 383138264, 478922830, 957845660, 1915691320]

約数ペア:

[(1, 1915691320), (2, 957845660), (4, 478922830), (5, 383138264), (8, 239461415), (10, 191569132), (20, 95784566), (40, 47892283), (2389, 801880), (4778, 400940), (9556, 200470), (11945, 160376), (19112, 100235), (20047, 95560), (23890, 80188), (40094, 47780)]