261215360

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{293}}^1$

素因数の和:518

約数の個数: 128

約数和(自身を含む): 719712000

約数和(自身を除く): 458496640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 199, 224, 280, 293, 320, 398, 448, 560, 586, 640, 796, 896, 995, 1120, 1172, 1393, 1465, 1592, 1990, 2051, 2240, 2344, 2786, 2930, 3184, 3980, 4102, 4480, 4688, 5572, 5860, 6368, 6965, 7960, 8204, 9376, 10255, 11144, 11720, 12736, 13930, 15920, 16408, 18752, 20510, 22288, 23440, 25472, 27860, 31840, 32816, 37504, 41020, 44576, 46880, 55720, 58307, 63680, 65632, 82040, 89152, 93760, 111440, 116614, 127360, 131264, 164080, 178304, 187520, 222880, 233228, 262528, 291535, 328160, 408149, 445760, 466456, 583070, 656320, 816298, 891520, 932912, 1166140, 1312640, 1632596, 1865824, 2040745, 2332280, 3265192, 3731648, 4081490, 4664560, 6530384, 7463296, 8162980, 9329120, 13060768, 16325960, 18658240, 26121536, 32651920, 37316480, 52243072, 65303840, 130607680, 261215360]

約数ペア:

[(1, 261215360), (2, 130607680), (4, 65303840), (5, 52243072), (7, 37316480), (8, 32651920), (10, 26121536), (14, 18658240), (16, 16325960), (20, 13060768), (28, 9329120), (32, 8162980), (35, 7463296), (40, 6530384), (56, 4664560), (64, 4081490), (70, 3731648), (80, 3265192), (112, 2332280), (128, 2040745), (140, 1865824), (160, 1632596), (199, 1312640), (224, 1166140), (280, 932912), (293, 891520), (320, 816298), (398, 656320), (448, 583070), (560, 466456), (586, 445760), (640, 408149), (796, 328160), (896, 291535), (995, 262528), (1120, 233228), (1172, 222880), (1393, 187520), (1465, 178304), (1592, 164080), (1990, 131264), (2051, 127360), (2240, 116614), (2344, 111440), (2786, 93760), (2930, 89152), (3184, 82040), (3980, 65632), (4102, 63680), (4480, 58307), (4688, 55720), (5572, 46880), (5860, 44576), (6368, 41020), (6965, 37504), (7960, 32816), (8204, 31840), (9376, 27860), (10255, 25472), (11144, 23440), (11720, 22288), (12736, 20510), (13930, 18752), (15920, 16408)]