256425720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{311}}^1\times {\mathrm{6871}}^1$

素因数の和:7196

約数の個数: 64

約数和(自身を含む): 771863040

約数和(自身を除く): 515437320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 311, 622, 933, 1244, 1555, 1866, 2488, 3110, 3732, 4665, 6220, 6871, 7464, 9330, 12440, 13742, 18660, 20613, 27484, 34355, 37320, 41226, 54968, 68710, 82452, 103065, 137420, 164904, 206130, 274840, 412260, 824520, 2136881, 4273762, 6410643, 8547524, 10684405, 12821286, 17095048, 21368810, 25642572, 32053215, 42737620, 51285144, 64106430, 85475240, 128212860, 256425720]

約数ペア:

[(1, 256425720), (2, 128212860), (3, 85475240), (4, 64106430), (5, 51285144), (6, 42737620), (8, 32053215), (10, 25642572), (12, 21368810), (15, 17095048), (20, 12821286), (24, 10684405), (30, 8547524), (40, 6410643), (60, 4273762), (120, 2136881), (311, 824520), (622, 412260), (933, 274840), (1244, 206130), (1555, 164904), (1866, 137420), (2488, 103065), (3110, 82452), (3732, 68710), (4665, 54968), (6220, 41226), (6871, 37320), (7464, 34355), (9330, 27484), (12440, 20613), (13742, 18660)]