2621690

素因数分解:

$2^1\times 5^1\times {\mathrm{409}}^1\times {\mathrm{641}}^1$

素因数の和:1057

約数の個数: 16

約数和(自身を含む): 4737960

約数和(自身を除く): 2116270

約数列:

[1, 2, 5, 10, 409, 641, 818, 1282, 2045, 3205, 4090, 6410, 262169, 524338, 1310845, 2621690]

約数ペア:

[(1, 2621690), (2, 1310845), (5, 524338), (10, 262169), (409, 6410), (641, 4090), (818, 3205), (1282, 2045)]