19953540

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{113}}^1$

素因数の和:243

約数の個数: 120

約数和(自身を含む): 63728280

約数和(自身を除く): 43774740

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 109, 113, 135, 162, 180, 218, 226, 270, 324, 327, 339, 405, 436, 452, 540, 545, 565, 654, 678, 810, 981, 1017, 1090, 1130, 1308, 1356, 1620, 1635, 1695, 1962, 2034, 2180, 2260, 2943, 3051, 3270, 3390, 3924, 4068, 4905, 5085, 5886, 6102, 6540, 6780, 8829, 9153, 9810, 10170, 11772, 12204, 12317, 14715, 15255, 17658, 18306, 19620, 20340, 24634, 29430, 30510, 35316, 36612, 36951, 44145, 45765, 49268, 58860, 61020, 61585, 73902, 88290, 91530, 110853, 123170, 147804, 176580, 183060, 184755, 221706, 246340, 332559, 369510, 443412, 554265, 665118, 739020, 997677, 1108530, 1330236, 1662795, 1995354, 2217060, 3325590, 3990708, 4988385, 6651180, 9976770, 19953540]

約数ペア:

[(1, 19953540), (2, 9976770), (3, 6651180), (4, 4988385), (5, 3990708), (6, 3325590), (9, 2217060), (10, 1995354), (12, 1662795), (15, 1330236), (18, 1108530), (20, 997677), (27, 739020), (30, 665118), (36, 554265), (45, 443412), (54, 369510), (60, 332559), (81, 246340), (90, 221706), (108, 184755), (109, 183060), (113, 176580), (135, 147804), (162, 123170), (180, 110853), (218, 91530), (226, 88290), (270, 73902), (324, 61585), (327, 61020), (339, 58860), (405, 49268), (436, 45765), (452, 44145), (540, 36951), (545, 36612), (565, 35316), (654, 30510), (678, 29430), (810, 24634), (981, 20340), (1017, 19620), (1090, 18306), (1130, 17658), (1308, 15255), (1356, 14715), (1620, 12317), (1635, 12204), (1695, 11772), (1962, 10170), (2034, 9810), (2180, 9153), (2260, 8829), (2943, 6780), (3051, 6540), (3270, 6102), (3390, 5886), (3924, 5085), (4068, 4905)]