1978820

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{607}}^1$

素因数の和:779

約数の個数: 24

約数和(自身を含む): 4187904

約数和(自身を除く): 2209084

約数列:

[1, 2, 4, 5, 10, 20, 163, 326, 607, 652, 815, 1214, 1630, 2428, 3035, 3260, 6070, 12140, 98941, 197882, 395764, 494705, 989410, 1978820]

約数ペア:

[(1, 1978820), (2, 989410), (4, 494705), (5, 395764), (10, 197882), (20, 98941), (163, 12140), (326, 6070), (607, 3260), (652, 3035), (815, 2428), (1214, 1630)]