90199760

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{161071}}^1$

素因数の和:161091

約数の個数: 40

約数和(自身を含む): 239675136

約数和(自身を除く): 149475376

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 161071, 322142, 644284, 805355, 1127497, 1288568, 1610710, 2254994, 2577136, 3221420, 4509988, 5637485, 6442840, 9019976, 11274970, 12885680, 18039952, 22549940, 45099880, 90199760]

約数ペア:

[(1, 90199760), (2, 45099880), (4, 22549940), (5, 18039952), (7, 12885680), (8, 11274970), (10, 9019976), (14, 6442840), (16, 5637485), (20, 4509988), (28, 3221420), (35, 2577136), (40, 2254994), (56, 1610710), (70, 1288568), (80, 1127497), (112, 805355), (140, 644284), (280, 322142), (560, 161071)]