20623180

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{419}}^1$

素因数の和:558

約数の個数: 48

約数和(自身を含む): 45722880

約数和(自身を除く): 25099700

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 107, 115, 214, 230, 419, 428, 460, 535, 838, 1070, 1676, 2095, 2140, 2461, 4190, 4922, 8380, 9637, 9844, 12305, 19274, 24610, 38548, 44833, 48185, 49220, 89666, 96370, 179332, 192740, 224165, 448330, 896660, 1031159, 2062318, 4124636, 5155795, 10311590, 20623180]

約数ペア:

[(1, 20623180), (2, 10311590), (4, 5155795), (5, 4124636), (10, 2062318), (20, 1031159), (23, 896660), (46, 448330), (92, 224165), (107, 192740), (115, 179332), (214, 96370), (230, 89666), (419, 49220), (428, 48185), (460, 44833), (535, 38548), (838, 24610), (1070, 19274), (1676, 12305), (2095, 9844), (2140, 9637), (2461, 8380), (4190, 4922)]