16157840

素因数分解:

$2^4\times 5^1\times {\mathrm{201973}}^1$

素因数の和:201986

約数の個数: 20

約数和(自身を含む): 37567164

約数和(自身を除く): 21409324

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 201973, 403946, 807892, 1009865, 1615784, 2019730, 3231568, 4039460, 8078920, 16157840]

約数ペア:

[(1, 16157840), (2, 8078920), (4, 4039460), (5, 3231568), (8, 2019730), (10, 1615784), (16, 1009865), (20, 807892), (40, 403946), (80, 201973)]