2111980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{8123}}^1$

素因数の和:8145

約数の個数: 24

約数和(自身を含む): 4776912

約数和(自身を除く): 2664932

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 8123, 16246, 32492, 40615, 81230, 105599, 162460, 211198, 422396, 527995, 1055990, 2111980]

約数ペア:

[(1, 2111980), (2, 1055990), (4, 527995), (5, 422396), (10, 211198), (13, 162460), (20, 105599), (26, 81230), (52, 40615), (65, 32492), (130, 16246), (260, 8123)]