290462788

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{677}}^1$

素因数の和:905

約数の個数: 72

約数和(自身を含む): 649252800

約数和(自身を除く): 358790012

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 77, 98, 154, 196, 199, 308, 398, 539, 677, 796, 1078, 1354, 1393, 2156, 2189, 2708, 2786, 4378, 4739, 5572, 7447, 8756, 9478, 9751, 14894, 15323, 18956, 19502, 29788, 30646, 33173, 39004, 52129, 61292, 66346, 104258, 107261, 132692, 134723, 208516, 214522, 269446, 364903, 429044, 538892, 729806, 943061, 1459612, 1481953, 1886122, 2963906, 3772244, 5927812, 6601427, 10373671, 13202854, 20747342, 26405708, 41494684, 72615697, 145231394, 290462788]

約数ペア:

[(1, 290462788), (2, 145231394), (4, 72615697), (7, 41494684), (11, 26405708), (14, 20747342), (22, 13202854), (28, 10373671), (44, 6601427), (49, 5927812), (77, 3772244), (98, 2963906), (154, 1886122), (196, 1481953), (199, 1459612), (308, 943061), (398, 729806), (539, 538892), (677, 429044), (796, 364903), (1078, 269446), (1354, 214522), (1393, 208516), (2156, 134723), (2189, 132692), (2708, 107261), (2786, 104258), (4378, 66346), (4739, 61292), (5572, 52129), (7447, 39004), (8756, 33173), (9478, 30646), (9751, 29788), (14894, 19502), (15323, 18956)]