20617812

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{701}}^1$

素因数の和:773

約数の個数: 72

約数和(自身を含む): 56216160

約数和(自身を除く): 35598348

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 43, 57, 76, 86, 114, 129, 171, 172, 228, 258, 342, 387, 516, 684, 701, 774, 817, 1402, 1548, 1634, 2103, 2451, 2804, 3268, 4206, 4902, 6309, 7353, 8412, 9804, 12618, 13319, 14706, 25236, 26638, 29412, 30143, 39957, 53276, 60286, 79914, 90429, 119871, 120572, 159828, 180858, 239742, 271287, 361716, 479484, 542574, 572717, 1085148, 1145434, 1718151, 2290868, 3436302, 5154453, 6872604, 10308906, 20617812]

約数ペア:

[(1, 20617812), (2, 10308906), (3, 6872604), (4, 5154453), (6, 3436302), (9, 2290868), (12, 1718151), (18, 1145434), (19, 1085148), (36, 572717), (38, 542574), (43, 479484), (57, 361716), (76, 271287), (86, 239742), (114, 180858), (129, 159828), (171, 120572), (172, 119871), (228, 90429), (258, 79914), (342, 60286), (387, 53276), (516, 39957), (684, 30143), (701, 29412), (774, 26638), (817, 25236), (1402, 14706), (1548, 13319), (1634, 12618), (2103, 9804), (2451, 8412), (2804, 7353), (3268, 6309), (4206, 4902)]