20601468

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{179}}^1$

素因数の和:351

約数の個数: 72

約数和(自身を含む): 55036800

約数和(自身を除く): 34435332

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 69, 92, 138, 139, 179, 207, 276, 278, 358, 414, 417, 537, 556, 716, 828, 834, 1074, 1251, 1611, 1668, 2148, 2502, 3197, 3222, 4117, 5004, 6394, 6444, 8234, 9591, 12351, 12788, 16468, 19182, 24702, 24881, 28773, 37053, 38364, 49404, 49762, 57546, 74106, 74643, 99524, 115092, 148212, 149286, 223929, 298572, 447858, 572263, 895716, 1144526, 1716789, 2289052, 3433578, 5150367, 6867156, 10300734, 20601468]

約数ペア:

[(1, 20601468), (2, 10300734), (3, 6867156), (4, 5150367), (6, 3433578), (9, 2289052), (12, 1716789), (18, 1144526), (23, 895716), (36, 572263), (46, 447858), (69, 298572), (92, 223929), (138, 149286), (139, 148212), (179, 115092), (207, 99524), (276, 74643), (278, 74106), (358, 57546), (414, 49762), (417, 49404), (537, 38364), (556, 37053), (716, 28773), (828, 24881), (834, 24702), (1074, 19182), (1251, 16468), (1611, 12788), (1668, 12351), (2148, 9591), (2502, 8234), (3197, 6444), (3222, 6394), (4117, 5004)]