19802160

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{3929}}^1$

素因数の和:3955

約数の個数: 120

約数和(自身を含む): 76021920

約数和(自身を除く): 56219760

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, 3929, 5040, 7858, 11787, 15716, 19645, 23574, 27503, 31432, 35361, 39290, 47148, 55006, 58935, 62864, 70722, 78580, 82509, 94296, 110012, 117870, 137515, 141444, 157160, 165018, 176805, 188592, 220024, 235740, 247527, 275030, 282888, 314320, 330036, 353610, 412545, 440048, 471480, 495054, 550060, 565776, 660072, 707220, 825090, 942960, 990108, 1100120, 1237635, 1320144, 1414440, 1650180, 1980216, 2200240, 2475270, 2828880, 3300360, 3960432, 4950540, 6600720, 9901080, 19802160]

約数ペア:

[(1, 19802160), (2, 9901080), (3, 6600720), (4, 4950540), (5, 3960432), (6, 3300360), (7, 2828880), (8, 2475270), (9, 2200240), (10, 1980216), (12, 1650180), (14, 1414440), (15, 1320144), (16, 1237635), (18, 1100120), (20, 990108), (21, 942960), (24, 825090), (28, 707220), (30, 660072), (35, 565776), (36, 550060), (40, 495054), (42, 471480), (45, 440048), (48, 412545), (56, 353610), (60, 330036), (63, 314320), (70, 282888), (72, 275030), (80, 247527), (84, 235740), (90, 220024), (105, 188592), (112, 176805), (120, 165018), (126, 157160), (140, 141444), (144, 137515), (168, 117870), (180, 110012), (210, 94296), (240, 82509), (252, 78580), (280, 70722), (315, 62864), (336, 58935), (360, 55006), (420, 47148), (504, 39290), (560, 35361), (630, 31432), (720, 27503), (840, 23574), (1008, 19645), (1260, 15716), (1680, 11787), (2520, 7858), (3929, 5040)]