55351940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{20809}}^1$

素因数の和:20844

約数の個数: 48

約数和(自身を含む): 139843200

約数和(自身を除く): 84491260

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, 20809, 41618, 83236, 104045, 145663, 208090, 291326, 395371, 416180, 582652, 728315, 790742, 1456630, 1581484, 1976855, 2767597, 2913260, 3953710, 5535194, 7907420, 11070388, 13837985, 27675970, 55351940]

約数ペア:

[(1, 55351940), (2, 27675970), (4, 13837985), (5, 11070388), (7, 7907420), (10, 5535194), (14, 3953710), (19, 2913260), (20, 2767597), (28, 1976855), (35, 1581484), (38, 1456630), (70, 790742), (76, 728315), (95, 582652), (133, 416180), (140, 395371), (190, 291326), (266, 208090), (380, 145663), (532, 104045), (665, 83236), (1330, 41618), (2660, 20809)]