1980720

素因数分解:

$2^4\times 3^3\times 5^1\times 7^1\times {\mathrm{131}}^1$

素因数の和:160

約数の個数: 160

約数和(自身を含む): 7856640

約数和(自身を除く): 5875920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 84, 90, 105, 108, 112, 120, 126, 131, 135, 140, 144, 168, 180, 189, 210, 216, 240, 252, 262, 270, 280, 315, 336, 360, 378, 393, 420, 432, 504, 524, 540, 560, 630, 655, 720, 756, 786, 840, 917, 945, 1008, 1048, 1080, 1179, 1260, 1310, 1512, 1572, 1680, 1834, 1890, 1965, 2096, 2160, 2358, 2520, 2620, 2751, 3024, 3144, 3537, 3668, 3780, 3930, 4585, 4716, 5040, 5240, 5502, 5895, 6288, 7074, 7336, 7560, 7860, 8253, 9170, 9432, 10480, 11004, 11790, 13755, 14148, 14672, 15120, 15720, 16506, 17685, 18340, 18864, 22008, 23580, 24759, 27510, 28296, 31440, 33012, 35370, 36680, 41265, 44016, 47160, 49518, 55020, 56592, 66024, 70740, 73360, 82530, 94320, 99036, 110040, 123795, 132048, 141480, 165060, 198072, 220080, 247590, 282960, 330120, 396144, 495180, 660240, 990360, 1980720]

約数ペア:

[(1, 1980720), (2, 990360), (3, 660240), (4, 495180), (5, 396144), (6, 330120), (7, 282960), (8, 247590), (9, 220080), (10, 198072), (12, 165060), (14, 141480), (15, 132048), (16, 123795), (18, 110040), (20, 99036), (21, 94320), (24, 82530), (27, 73360), (28, 70740), (30, 66024), (35, 56592), (36, 55020), (40, 49518), (42, 47160), (45, 44016), (48, 41265), (54, 36680), (56, 35370), (60, 33012), (63, 31440), (70, 28296), (72, 27510), (80, 24759), (84, 23580), (90, 22008), (105, 18864), (108, 18340), (112, 17685), (120, 16506), (126, 15720), (131, 15120), (135, 14672), (140, 14148), (144, 13755), (168, 11790), (180, 11004), (189, 10480), (210, 9432), (216, 9170), (240, 8253), (252, 7860), (262, 7560), (270, 7336), (280, 7074), (315, 6288), (336, 5895), (360, 5502), (378, 5240), (393, 5040), (420, 4716), (432, 4585), (504, 3930), (524, 3780), (540, 3668), (560, 3537), (630, 3144), (655, 3024), (720, 2751), (756, 2620), (786, 2520), (840, 2358), (917, 2160), (945, 2096), (1008, 1965), (1048, 1890), (1080, 1834), (1179, 1680), (1260, 1572), (1310, 1512)]