8089420

素因数分解:

$2^2\times 5^1\times {\mathrm{631}}^1\times {\mathrm{641}}^1$

素因数の和:1281

約数の個数: 24

約数和(自身を含む): 17041248

約数和(自身を除く): 8951828

約数列:

[1, 2, 4, 5, 10, 20, 631, 641, 1262, 1282, 2524, 2564, 3155, 3205, 6310, 6410, 12620, 12820, 404471, 808942, 1617884, 2022355, 4044710, 8089420]

約数ペア:

[(1, 8089420), (2, 4044710), (4, 2022355), (5, 1617884), (10, 808942), (20, 404471), (631, 12820), (641, 12620), (1262, 6410), (1282, 6310), (2524, 3205), (2564, 3155)]