638171256

素因数分解:

$2^3\times 3^1\times {\mathrm{43}}^2\times {\mathrm{73}}^1\times {\mathrm{197}}^1$

素因数の和:365

約数の個数: 96

約数和(自身を含む): 1664174160

約数和(自身を除く): 1026002904

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 43, 73, 86, 129, 146, 172, 197, 219, 258, 292, 344, 394, 438, 516, 584, 591, 788, 876, 1032, 1182, 1576, 1752, 1849, 2364, 3139, 3698, 4728, 5547, 6278, 7396, 8471, 9417, 11094, 12556, 14381, 14792, 16942, 18834, 22188, 25112, 25413, 28762, 33884, 37668, 43143, 44376, 50826, 57524, 67768, 75336, 86286, 101652, 115048, 134977, 172572, 203304, 269954, 345144, 364253, 404931, 539908, 618383, 728506, 809862, 1079816, 1092759, 1236766, 1457012, 1619724, 1855149, 2185518, 2473532, 2914024, 3239448, 3710298, 4371036, 4947064, 7420596, 8742072, 14841192, 26590469, 53180938, 79771407, 106361876, 159542814, 212723752, 319085628, 638171256]

約数ペア:

[(1, 638171256), (2, 319085628), (3, 212723752), (4, 159542814), (6, 106361876), (8, 79771407), (12, 53180938), (24, 26590469), (43, 14841192), (73, 8742072), (86, 7420596), (129, 4947064), (146, 4371036), (172, 3710298), (197, 3239448), (219, 2914024), (258, 2473532), (292, 2185518), (344, 1855149), (394, 1619724), (438, 1457012), (516, 1236766), (584, 1092759), (591, 1079816), (788, 809862), (876, 728506), (1032, 618383), (1182, 539908), (1576, 404931), (1752, 364253), (1849, 345144), (2364, 269954), (3139, 203304), (3698, 172572), (4728, 134977), (5547, 115048), (6278, 101652), (7396, 86286), (8471, 75336), (9417, 67768), (11094, 57524), (12556, 50826), (14381, 44376), (14792, 43143), (16942, 37668), (18834, 33884), (22188, 28762), (25112, 25413)]