101487920

素因数分解:

$2^4\times 5^1\times {\mathrm{1268599}}^1$

素因数の和:1268612

約数の個数: 20

約数和(自身を含む): 235959600

約数和(自身を除く): 134471680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1268599, 2537198, 5074396, 6342995, 10148792, 12685990, 20297584, 25371980, 50743960, 101487920]

約数ペア:

[(1, 101487920), (2, 50743960), (4, 25371980), (5, 20297584), (8, 12685990), (10, 10148792), (16, 6342995), (20, 5074396), (40, 2537198), (80, 1268599)]