31983760

素因数分解:

$2^4\times 5^1\times {\mathrm{401}}^1\times {\mathrm{997}}^1$

素因数の和:1411

約数の個数: 40

約数和(自身を含む): 74622456

約数和(自身を除く): 42638696

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 401, 802, 997, 1604, 1994, 2005, 3208, 3988, 4010, 4985, 6416, 7976, 8020, 9970, 15952, 16040, 19940, 32080, 39880, 79760, 399797, 799594, 1599188, 1998985, 3198376, 3997970, 6396752, 7995940, 15991880, 31983760]

約数ペア:

[(1, 31983760), (2, 15991880), (4, 7995940), (5, 6396752), (8, 3997970), (10, 3198376), (16, 1998985), (20, 1599188), (40, 799594), (80, 399797), (401, 79760), (802, 39880), (997, 32080), (1604, 19940), (1994, 16040), (2005, 15952), (3208, 9970), (3988, 8020), (4010, 7976), (4985, 6416)]