20347100

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{10709}}^1$

素因数の和:10742

約数の個数: 36

約数和(自身を含む): 46481400

約数和(自身を除く): 26134300

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 190, 380, 475, 950, 1900, 10709, 21418, 42836, 53545, 107090, 203471, 214180, 267725, 406942, 535450, 813884, 1017355, 1070900, 2034710, 4069420, 5086775, 10173550, 20347100]

約数ペア:

[(1, 20347100), (2, 10173550), (4, 5086775), (5, 4069420), (10, 2034710), (19, 1070900), (20, 1017355), (25, 813884), (38, 535450), (50, 406942), (76, 267725), (95, 214180), (100, 203471), (190, 107090), (380, 53545), (475, 42836), (950, 21418), (1900, 10709)]