245157080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{6299}}^1$

素因数の和:6456

約数の個数: 64

約数和(自身を含む): 635040000

約数和(自身を除く): 389882920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 139, 140, 278, 280, 556, 695, 973, 1112, 1390, 1946, 2780, 3892, 4865, 5560, 6299, 7784, 9730, 12598, 19460, 25196, 31495, 38920, 44093, 50392, 62990, 88186, 125980, 176372, 220465, 251960, 352744, 440930, 875561, 881860, 1751122, 1763720, 3502244, 4377805, 6128927, 7004488, 8755610, 12257854, 17511220, 24515708, 30644635, 35022440, 49031416, 61289270, 122578540, 245157080]

約数ペア:

[(1, 245157080), (2, 122578540), (4, 61289270), (5, 49031416), (7, 35022440), (8, 30644635), (10, 24515708), (14, 17511220), (20, 12257854), (28, 8755610), (35, 7004488), (40, 6128927), (56, 4377805), (70, 3502244), (139, 1763720), (140, 1751122), (278, 881860), (280, 875561), (556, 440930), (695, 352744), (973, 251960), (1112, 220465), (1390, 176372), (1946, 125980), (2780, 88186), (3892, 62990), (4865, 50392), (5560, 44093), (6299, 38920), (7784, 31495), (9730, 25196), (12598, 19460)]