64105400

素因数分解:

$2^3\times 5^2\times {\mathrm{251}}^1\times {\mathrm{1277}}^1$

素因数の和:1544

約数の個数: 48

約数和(自身を含む): 149756040

約数和(自身を除く): 85650640

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 251, 502, 1004, 1255, 1277, 2008, 2510, 2554, 5020, 5108, 6275, 6385, 10040, 10216, 12550, 12770, 25100, 25540, 31925, 50200, 51080, 63850, 127700, 255400, 320527, 641054, 1282108, 1602635, 2564216, 3205270, 6410540, 8013175, 12821080, 16026350, 32052700, 64105400]

約数ペア:

[(1, 64105400), (2, 32052700), (4, 16026350), (5, 12821080), (8, 8013175), (10, 6410540), (20, 3205270), (25, 2564216), (40, 1602635), (50, 1282108), (100, 641054), (200, 320527), (251, 255400), (502, 127700), (1004, 63850), (1255, 51080), (1277, 50200), (2008, 31925), (2510, 25540), (2554, 25100), (5020, 12770), (5108, 12550), (6275, 10216), (6385, 10040)]