2011201930

素因数分解:

$2^1\times 5^1\times {\mathrm{9091}}^1\times {\mathrm{22123}}^1$

素因数の和:31221

約数の個数: 16

約数和(自身を含む): 3620725344

約数和(自身を除く): 1609523414

約数列:

[1, 2, 5, 10, 9091, 18182, 22123, 44246, 45455, 90910, 110615, 221230, 201120193, 402240386, 1005600965, 2011201930]

約数ペア:

[(1, 2011201930), (2, 1005600965), (5, 402240386), (10, 201120193), (9091, 221230), (18182, 110615), (22123, 90910), (44246, 45455)]