1221660720

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{242393}}^1$

素因数の和:242419

約数の個数: 120

約数和(自身を含む): 4688869536

約数和(自身を除く): 3467208816

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 105, 112, 120, 126, 140, 144, 168, 180, 210, 240, 252, 280, 315, 336, 360, 420, 504, 560, 630, 720, 840, 1008, 1260, 1680, 2520, 5040, 242393, 484786, 727179, 969572, 1211965, 1454358, 1696751, 1939144, 2181537, 2423930, 2908716, 3393502, 3635895, 3878288, 4363074, 4847860, 5090253, 5817432, 6787004, 7271790, 8483755, 8726148, 9695720, 10180506, 10907685, 11634864, 13574008, 14543580, 15270759, 16967510, 17452296, 19391440, 20361012, 21815370, 25451265, 27148016, 29087160, 30541518, 33935020, 34904592, 40722024, 43630740, 50902530, 58174320, 61083036, 67870040, 76353795, 81444048, 87261480, 101805060, 122166072, 135740080, 152707590, 174522960, 203610120, 244332144, 305415180, 407220240, 610830360, 1221660720]

約数ペア:

[(1, 1221660720), (2, 610830360), (3, 407220240), (4, 305415180), (5, 244332144), (6, 203610120), (7, 174522960), (8, 152707590), (9, 135740080), (10, 122166072), (12, 101805060), (14, 87261480), (15, 81444048), (16, 76353795), (18, 67870040), (20, 61083036), (21, 58174320), (24, 50902530), (28, 43630740), (30, 40722024), (35, 34904592), (36, 33935020), (40, 30541518), (42, 29087160), (45, 27148016), (48, 25451265), (56, 21815370), (60, 20361012), (63, 19391440), (70, 17452296), (72, 16967510), (80, 15270759), (84, 14543580), (90, 13574008), (105, 11634864), (112, 10907685), (120, 10180506), (126, 9695720), (140, 8726148), (144, 8483755), (168, 7271790), (180, 6787004), (210, 5817432), (240, 5090253), (252, 4847860), (280, 4363074), (315, 3878288), (336, 3635895), (360, 3393502), (420, 2908716), (504, 2423930), (560, 2181537), (630, 1939144), (720, 1696751), (840, 1454358), (1008, 1211965), (1260, 969572), (1680, 727179), (2520, 484786), (5040, 242393)]