2019945940

素因数分解:

$2^2\times 5^1\times {\mathrm{100997297}}^1$

素因数の和:100997306

約数の個数: 12

約数和(自身を含む): 4241886516

約数和(自身を除く): 2221940576

約数列:

[1, 2, 4, 5, 10, 20, 100997297, 201994594, 403989188, 504986485, 1009972970, 2019945940]

約数ペア:

[(1, 2019945940), (2, 1009972970), (4, 504986485), (5, 403989188), (10, 201994594), (20, 100997297)]