1278207844

素因数分解:

$2^2\times {\mathrm{641}}^1\times {\mathrm{498521}}^1$

素因数の和:499166

約数の個数: 12

約数和(自身を含む): 2240357868

約数和(自身を除く): 962150024

約数列:

[1, 2, 4, 641, 1282, 2564, 498521, 997042, 1994084, 319551961, 639103922, 1278207844]

約数ペア:

[(1, 1278207844), (2, 639103922), (4, 319551961), (641, 1994084), (1282, 997042), (2564, 498521)]