256125420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{251}}^1\times {\mathrm{5669}}^1$

素因数の和:5935

約数の個数: 72

約数和(自身を含む): 780146640

約数和(自身を除く): 524021220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 251, 502, 753, 1004, 1255, 1506, 2259, 2510, 3012, 3765, 4518, 5020, 5669, 7530, 9036, 11295, 11338, 15060, 17007, 22590, 22676, 28345, 34014, 45180, 51021, 56690, 68028, 85035, 102042, 113380, 170070, 204084, 255105, 340140, 510210, 1020420, 1422919, 2845838, 4268757, 5691676, 7114595, 8537514, 12806271, 14229190, 17075028, 21343785, 25612542, 28458380, 42687570, 51225084, 64031355, 85375140, 128062710, 256125420]

約数ペア:

[(1, 256125420), (2, 128062710), (3, 85375140), (4, 64031355), (5, 51225084), (6, 42687570), (9, 28458380), (10, 25612542), (12, 21343785), (15, 17075028), (18, 14229190), (20, 12806271), (30, 8537514), (36, 7114595), (45, 5691676), (60, 4268757), (90, 2845838), (180, 1422919), (251, 1020420), (502, 510210), (753, 340140), (1004, 255105), (1255, 204084), (1506, 170070), (2259, 113380), (2510, 102042), (3012, 85035), (3765, 68028), (4518, 56690), (5020, 51021), (5669, 45180), (7530, 34014), (9036, 28345), (11295, 22676), (11338, 22590), (15060, 17007)]