199929020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{27691}}^1$

素因数の和:27738

約数の個数: 36

約数和(自身を含む): 443127384

約数和(自身を除く): 243198364

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 361, 380, 722, 1444, 1805, 3610, 7220, 27691, 55382, 110764, 138455, 276910, 526129, 553820, 1052258, 2104516, 2630645, 5261290, 9996451, 10522580, 19992902, 39985804, 49982255, 99964510, 199929020]

約数ペア:

[(1, 199929020), (2, 99964510), (4, 49982255), (5, 39985804), (10, 19992902), (19, 10522580), (20, 9996451), (38, 5261290), (76, 2630645), (95, 2104516), (190, 1052258), (361, 553820), (380, 526129), (722, 276910), (1444, 138455), (1805, 110764), (3610, 55382), (7220, 27691)]