20109908

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{547}}^1$

素因数の和:672

約数の個数: 48

約数和(自身を含む): 43822464

約数和(自身を除く): 23712556

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 101, 182, 202, 364, 404, 547, 707, 1094, 1313, 1414, 2188, 2626, 2828, 3829, 5252, 7111, 7658, 9191, 14222, 15316, 18382, 28444, 36764, 49777, 55247, 99554, 110494, 199108, 220988, 386729, 718211, 773458, 1436422, 1546916, 2872844, 5027477, 10054954, 20109908]

約数ペア:

[(1, 20109908), (2, 10054954), (4, 5027477), (7, 2872844), (13, 1546916), (14, 1436422), (26, 773458), (28, 718211), (52, 386729), (91, 220988), (101, 199108), (182, 110494), (202, 99554), (364, 55247), (404, 49777), (547, 36764), (707, 28444), (1094, 18382), (1313, 15316), (1414, 14222), (2188, 9191), (2626, 7658), (2828, 7111), (3829, 5252)]