15999676

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{181}}^1$

素因数の和:251

約数の個数: 72

約数和(自身を含む): 36599472

約数和(自身を除く): 20599796

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 41, 44, 49, 77, 82, 98, 154, 164, 181, 196, 287, 308, 362, 451, 539, 574, 724, 902, 1078, 1148, 1267, 1804, 1991, 2009, 2156, 2534, 3157, 3982, 4018, 5068, 6314, 7421, 7964, 8036, 8869, 12628, 13937, 14842, 17738, 22099, 27874, 29684, 35476, 44198, 51947, 55748, 81631, 88396, 97559, 103894, 163262, 195118, 207788, 326524, 363629, 390236, 571417, 727258, 1142834, 1454516, 2285668, 3999919, 7999838, 15999676]

約数ペア:

[(1, 15999676), (2, 7999838), (4, 3999919), (7, 2285668), (11, 1454516), (14, 1142834), (22, 727258), (28, 571417), (41, 390236), (44, 363629), (49, 326524), (77, 207788), (82, 195118), (98, 163262), (154, 103894), (164, 97559), (181, 88396), (196, 81631), (287, 55748), (308, 51947), (362, 44198), (451, 35476), (539, 29684), (574, 27874), (724, 22099), (902, 17738), (1078, 14842), (1148, 13937), (1267, 12628), (1804, 8869), (1991, 8036), (2009, 7964), (2156, 7421), (2534, 6314), (3157, 5068), (3982, 4018)]