18510940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{6959}}^1$

素因数の和:6994

約数の個数: 48

約数和(自身を含む): 46771200

約数和(自身を除く): 28260260

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, 6959, 13918, 27836, 34795, 48713, 69590, 97426, 132221, 139180, 194852, 243565, 264442, 487130, 528884, 661105, 925547, 974260, 1322210, 1851094, 2644420, 3702188, 4627735, 9255470, 18510940]

約数ペア:

[(1, 18510940), (2, 9255470), (4, 4627735), (5, 3702188), (7, 2644420), (10, 1851094), (14, 1322210), (19, 974260), (20, 925547), (28, 661105), (35, 528884), (38, 487130), (70, 264442), (76, 243565), (95, 194852), (133, 139180), (140, 132221), (190, 97426), (266, 69590), (380, 48713), (532, 34795), (665, 27836), (1330, 13918), (2660, 6959)]