215546520

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{256603}}^1$

素因数の和:256624

約数の個数: 64

約数和(自身を含む): 739019520

約数和(自身を除く): 523473000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 256603, 513206, 769809, 1026412, 1283015, 1539618, 1796221, 2052824, 2566030, 3079236, 3592442, 3849045, 5132060, 5388663, 6158472, 7184884, 7698090, 8981105, 10264120, 10777326, 14369768, 15396180, 17962210, 21554652, 26943315, 30792360, 35924420, 43109304, 53886630, 71848840, 107773260, 215546520]

約数ペア:

[(1, 215546520), (2, 107773260), (3, 71848840), (4, 53886630), (5, 43109304), (6, 35924420), (7, 30792360), (8, 26943315), (10, 21554652), (12, 17962210), (14, 15396180), (15, 14369768), (20, 10777326), (21, 10264120), (24, 8981105), (28, 7698090), (30, 7184884), (35, 6158472), (40, 5388663), (42, 5132060), (56, 3849045), (60, 3592442), (70, 3079236), (84, 2566030), (105, 2052824), (120, 1796221), (140, 1539618), (168, 1283015), (210, 1026412), (280, 769809), (420, 513206), (840, 256603)]