55601980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{20903}}^1$

素因数の和:20938

約数の個数: 48

約数和(自身を含む): 140474880

約数和(自身を除く): 84872900

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, 20903, 41806, 83612, 104515, 146321, 209030, 292642, 397157, 418060, 585284, 731605, 794314, 1463210, 1588628, 1985785, 2780099, 2926420, 3971570, 5560198, 7943140, 11120396, 13900495, 27800990, 55601980]

約数ペア:

[(1, 55601980), (2, 27800990), (4, 13900495), (5, 11120396), (7, 7943140), (10, 5560198), (14, 3971570), (19, 2926420), (20, 2780099), (28, 1985785), (35, 1588628), (38, 1463210), (70, 794314), (76, 731605), (95, 585284), (133, 418060), (140, 397157), (190, 292642), (266, 209030), (380, 146321), (532, 104515), (665, 83612), (1330, 41806), (2660, 20903)]