100817840

素因数分解:

$2^4\times 5^1\times {\mathrm{1260223}}^1$

素因数の和:1260236

約数の個数: 20

約数和(自身を含む): 234401664

約数和(自身を除く): 133583824

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1260223, 2520446, 5040892, 6301115, 10081784, 12602230, 20163568, 25204460, 50408920, 100817840]

約数ペア:

[(1, 100817840), (2, 50408920), (4, 25204460), (5, 20163568), (8, 12602230), (10, 10081784), (16, 6301115), (20, 5040892), (40, 2520446), (80, 1260223)]