128371440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{251}}^1\times {\mathrm{2131}}^1$

素因数の和:2398

約数の個数: 80

約数和(自身を含む): 399724416

約数和(自身を除く): 271352976

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 251, 502, 753, 1004, 1255, 1506, 2008, 2131, 2510, 3012, 3765, 4016, 4262, 5020, 6024, 6393, 7530, 8524, 10040, 10655, 12048, 12786, 15060, 17048, 20080, 21310, 25572, 30120, 31965, 34096, 42620, 51144, 60240, 63930, 85240, 102288, 127860, 170480, 255720, 511440, 534881, 1069762, 1604643, 2139524, 2674405, 3209286, 4279048, 5348810, 6418572, 8023215, 8558096, 10697620, 12837144, 16046430, 21395240, 25674288, 32092860, 42790480, 64185720, 128371440]

約数ペア:

[(1, 128371440), (2, 64185720), (3, 42790480), (4, 32092860), (5, 25674288), (6, 21395240), (8, 16046430), (10, 12837144), (12, 10697620), (15, 8558096), (16, 8023215), (20, 6418572), (24, 5348810), (30, 4279048), (40, 3209286), (48, 2674405), (60, 2139524), (80, 1604643), (120, 1069762), (240, 534881), (251, 511440), (502, 255720), (753, 170480), (1004, 127860), (1255, 102288), (1506, 85240), (2008, 63930), (2131, 60240), (2510, 51144), (3012, 42620), (3765, 34096), (4016, 31965), (4262, 30120), (5020, 25572), (6024, 21310), (6393, 20080), (7530, 17048), (8524, 15060), (10040, 12786), (10655, 12048)]