8740840

素因数分解:

$2^3\times 5^1\times {\mathrm{218521}}^1$

素因数の和:218532

約数の個数: 16

約数和(自身を含む): 19666980

約数和(自身を除く): 10926140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 218521, 437042, 874084, 1092605, 1748168, 2185210, 4370420, 8740840]

約数ペア:

[(1, 8740840), (2, 4370420), (4, 2185210), (5, 1748168), (8, 1092605), (10, 874084), (20, 437042), (40, 218521)]