201811680

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{20021}}^1$

素因数の和:20049

約数の個数: 144

約数和(自身を含む): 787104864

約数和(自身を除く): 585293184

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 140, 144, 160, 168, 180, 210, 224, 240, 252, 280, 288, 315, 336, 360, 420, 480, 504, 560, 630, 672, 720, 840, 1008, 1120, 1260, 1440, 1680, 2016, 2520, 3360, 5040, 10080, 20021, 40042, 60063, 80084, 100105, 120126, 140147, 160168, 180189, 200210, 240252, 280294, 300315, 320336, 360378, 400420, 420441, 480504, 560588, 600630, 640672, 700735, 720756, 800840, 840882, 900945, 961008, 1121176, 1201260, 1261323, 1401470, 1441512, 1601680, 1681764, 1801890, 1922016, 2102205, 2242352, 2402520, 2522646, 2802940, 2883024, 3203360, 3363528, 3603780, 4204410, 4484704, 4805040, 5045292, 5605880, 5766048, 6306615, 6727056, 7207560, 8408820, 9610080, 10090584, 11211760, 12613230, 13454112, 14415120, 16817640, 20181168, 22423520, 25226460, 28830240, 33635280, 40362336, 50452920, 67270560, 100905840, 201811680]

約数ペア:

[(1, 201811680), (2, 100905840), (3, 67270560), (4, 50452920), (5, 40362336), (6, 33635280), (7, 28830240), (8, 25226460), (9, 22423520), (10, 20181168), (12, 16817640), (14, 14415120), (15, 13454112), (16, 12613230), (18, 11211760), (20, 10090584), (21, 9610080), (24, 8408820), (28, 7207560), (30, 6727056), (32, 6306615), (35, 5766048), (36, 5605880), (40, 5045292), (42, 4805040), (45, 4484704), (48, 4204410), (56, 3603780), (60, 3363528), (63, 3203360), (70, 2883024), (72, 2802940), (80, 2522646), (84, 2402520), (90, 2242352), (96, 2102205), (105, 1922016), (112, 1801890), (120, 1681764), (126, 1601680), (140, 1441512), (144, 1401470), (160, 1261323), (168, 1201260), (180, 1121176), (210, 961008), (224, 900945), (240, 840882), (252, 800840), (280, 720756), (288, 700735), (315, 640672), (336, 600630), (360, 560588), (420, 480504), (480, 420441), (504, 400420), (560, 360378), (630, 320336), (672, 300315), (720, 280294), (840, 240252), (1008, 200210), (1120, 180189), (1260, 160168), (1440, 140147), (1680, 120126), (2016, 100105), (2520, 80084), (3360, 60063), (5040, 40042), (10080, 20021)]