39001840

素因数分解:

$2^4\times 5^1\times {\mathrm{499}}^1\times {\mathrm{977}}^1$

素因数の和:1489

約数の個数: 40

約数和(自身を含む): 90954000

約数和(自身を除く): 51952160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 499, 977, 998, 1954, 1996, 2495, 3908, 3992, 4885, 4990, 7816, 7984, 9770, 9980, 15632, 19540, 19960, 39080, 39920, 78160, 487523, 975046, 1950092, 2437615, 3900184, 4875230, 7800368, 9750460, 19500920, 39001840]

約数ペア:

[(1, 39001840), (2, 19500920), (4, 9750460), (5, 7800368), (8, 4875230), (10, 3900184), (16, 2437615), (20, 1950092), (40, 975046), (80, 487523), (499, 78160), (977, 39920), (998, 39080), (1954, 19960), (1996, 19540), (2495, 15632), (3908, 9980), (3992, 9770), (4885, 7984), (4990, 7816)]