81971008

素因数分解:

$2^6\times 7^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{229}}^1$

素因数の和:312

約数の個数: 112

約数和(自身を含む): 201899520

約数和(自身を除く): 119928512

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 32, 34, 47, 56, 64, 68, 94, 112, 119, 136, 188, 224, 229, 238, 272, 329, 376, 448, 458, 476, 544, 658, 752, 799, 916, 952, 1088, 1316, 1504, 1598, 1603, 1832, 1904, 2632, 3008, 3196, 3206, 3664, 3808, 3893, 5264, 5593, 6392, 6412, 7328, 7616, 7786, 10528, 10763, 11186, 12784, 12824, 14656, 15572, 21056, 21526, 22372, 25568, 25648, 27251, 31144, 43052, 44744, 51136, 51296, 54502, 62288, 75341, 86104, 89488, 102592, 109004, 124576, 150682, 172208, 178976, 182971, 218008, 249152, 301364, 344416, 357952, 365942, 436016, 602728, 688832, 731884, 872032, 1205456, 1280797, 1463768, 1744064, 2410912, 2561594, 2927536, 4821824, 5123188, 5855072, 10246376, 11710144, 20492752, 40985504, 81971008]

約数ペア:

[(1, 81971008), (2, 40985504), (4, 20492752), (7, 11710144), (8, 10246376), (14, 5855072), (16, 5123188), (17, 4821824), (28, 2927536), (32, 2561594), (34, 2410912), (47, 1744064), (56, 1463768), (64, 1280797), (68, 1205456), (94, 872032), (112, 731884), (119, 688832), (136, 602728), (188, 436016), (224, 365942), (229, 357952), (238, 344416), (272, 301364), (329, 249152), (376, 218008), (448, 182971), (458, 178976), (476, 172208), (544, 150682), (658, 124576), (752, 109004), (799, 102592), (916, 89488), (952, 86104), (1088, 75341), (1316, 62288), (1504, 54502), (1598, 51296), (1603, 51136), (1832, 44744), (1904, 43052), (2632, 31144), (3008, 27251), (3196, 25648), (3206, 25568), (3664, 22372), (3808, 21526), (3893, 21056), (5264, 15572), (5593, 14656), (6392, 12824), (6412, 12784), (7328, 11186), (7616, 10763), (7786, 10528)]