64507000

素因数分解:

$2^3\times 5^3\times {\mathrm{251}}^1\times {\mathrm{257}}^1$

素因数の和:529

約数の個数: 64

約数和(自身を含む): 152137440

約数和(自身を除く): 87630440

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 251, 257, 500, 502, 514, 1000, 1004, 1028, 1255, 1285, 2008, 2056, 2510, 2570, 5020, 5140, 6275, 6425, 10040, 10280, 12550, 12850, 25100, 25700, 31375, 32125, 50200, 51400, 62750, 64250, 64507, 125500, 128500, 129014, 251000, 257000, 258028, 322535, 516056, 645070, 1290140, 1612675, 2580280, 3225350, 6450700, 8063375, 12901400, 16126750, 32253500, 64507000]

約数ペア:

[(1, 64507000), (2, 32253500), (4, 16126750), (5, 12901400), (8, 8063375), (10, 6450700), (20, 3225350), (25, 2580280), (40, 1612675), (50, 1290140), (100, 645070), (125, 516056), (200, 322535), (250, 258028), (251, 257000), (257, 251000), (500, 129014), (502, 128500), (514, 125500), (1000, 64507), (1004, 64250), (1028, 62750), (1255, 51400), (1285, 50200), (2008, 32125), (2056, 31375), (2510, 25700), (2570, 25100), (5020, 12850), (5140, 12550), (6275, 10280), (6425, 10040)]