40597840

素因数分解:

$2^4\times 5^1\times {\mathrm{509}}^1\times {\mathrm{997}}^1$

素因数の和:1519

約数の個数: 40

約数和(自身を含む): 94670280

約数和(自身を除く): 54072440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 509, 997, 1018, 1994, 2036, 2545, 3988, 4072, 4985, 5090, 7976, 8144, 9970, 10180, 15952, 19940, 20360, 39880, 40720, 79760, 507473, 1014946, 2029892, 2537365, 4059784, 5074730, 8119568, 10149460, 20298920, 40597840]

約数ペア:

[(1, 40597840), (2, 20298920), (4, 10149460), (5, 8119568), (8, 5074730), (10, 4059784), (16, 2537365), (20, 2029892), (40, 1014946), (80, 507473), (509, 79760), (997, 40720), (1018, 39880), (1994, 20360), (2036, 19940), (2545, 15952), (3988, 10180), (4072, 9970), (4985, 8144), (5090, 7976)]