20106940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{7559}}^1$

素因数の和:7594

約数の個数: 48

約数和(自身を含む): 50803200

約数和(自身を除く): 30696260

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 380, 532, 665, 1330, 2660, 7559, 15118, 30236, 37795, 52913, 75590, 105826, 143621, 151180, 211652, 264565, 287242, 529130, 574484, 718105, 1005347, 1058260, 1436210, 2010694, 2872420, 4021388, 5026735, 10053470, 20106940]

約数ペア:

[(1, 20106940), (2, 10053470), (4, 5026735), (5, 4021388), (7, 2872420), (10, 2010694), (14, 1436210), (19, 1058260), (20, 1005347), (28, 718105), (35, 574484), (38, 529130), (70, 287242), (76, 264565), (95, 211652), (133, 151180), (140, 143621), (190, 105826), (266, 75590), (380, 52913), (532, 37795), (665, 30236), (1330, 15118), (2660, 7559)]