20156870160

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{3999379}}^1$

素因数の和:3999405

約数の個数: 120

約数和(自身を含む): 77364006720

約数和(自身を除く): 57207136560

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, 3999379, 7998758, 11998137, 15997516, 19996895, 23996274, 27995653, 31995032, 35994411, 39993790, 47992548, 55991306, 59990685, 63990064, 71988822, 79987580, 83986959, 95985096, 111982612, 119981370, 139978265, 143977644, 159975160, 167973918, 179972055, 191970192, 223965224, 239962740, 251960877, 279956530, 287955288, 319950320, 335947836, 359944110, 419934795, 447930448, 479925480, 503921754, 559913060, 575910576, 671895672, 719888220, 839869590, 959850960, 1007843508, 1119826120, 1259804385, 1343791344, 1439776440, 1679739180, 2015687016, 2239652240, 2519608770, 2879552880, 3359478360, 4031374032, 5039217540, 6718956720, 10078435080, 20156870160]

約数ペア:

[(1, 20156870160), (2, 10078435080), (3, 6718956720), (4, 5039217540), (5, 4031374032), (6, 3359478360), (7, 2879552880), (8, 2519608770), (9, 2239652240), (10, 2015687016), (12, 1679739180), (14, 1439776440), (15, 1343791344), (16, 1259804385), (18, 1119826120), (20, 1007843508), (21, 959850960), (24, 839869590), (28, 719888220), (30, 671895672), (35, 575910576), (36, 559913060), (40, 503921754), (42, 479925480), (45, 447930448), (48, 419934795), (56, 359944110), (60, 335947836), (63, 319950320), (70, 287955288), (72, 279956530), (80, 251960877), (84, 239962740), (90, 223965224), (105, 191970192), (112, 179972055), (120, 167973918), (126, 159975160), (140, 143977644), (144, 139978265), (168, 119981370), (180, 111982612), (210, 95985096), (240, 83986959), (252, 79987580), (280, 71988822), (315, 63990064), (336, 59990685), (360, 55991306), (420, 47992548), (504, 39993790), (560, 35994411), (630, 31995032), (720, 27995653), (840, 23996274), (1008, 19996895), (1260, 15997516), (1680, 11998137), (2520, 7998758), (5040, 3999379)]