1012840

素因数分解:

$2^3\times 5^1\times {\mathrm{25321}}^1$

素因数の和:25332

約数の個数: 16

約数和(自身を含む): 2278980

約数和(自身を除く): 1266140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 25321, 50642, 101284, 126605, 202568, 253210, 506420, 1012840]

約数ペア:

[(1, 1012840), (2, 506420), (4, 253210), (5, 202568), (8, 126605), (10, 101284), (20, 50642), (40, 25321)]