990175488

素因数分解:

$2^8\times 3^1\times {\mathrm{991}}^1\times {\mathrm{1301}}^1$

素因数の和:2311

約数の個数: 72

約数和(自身を含む): 2639997696

約数和(自身を除く): 1649822208

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 128, 192, 256, 384, 768, 991, 1301, 1982, 2602, 2973, 3903, 3964, 5204, 5946, 7806, 7928, 10408, 11892, 15612, 15856, 20816, 23784, 31224, 31712, 41632, 47568, 62448, 63424, 83264, 95136, 124896, 126848, 166528, 190272, 249792, 253696, 333056, 380544, 499584, 761088, 999168, 1289291, 2578582, 3867873, 5157164, 7735746, 10314328, 15471492, 20628656, 30942984, 41257312, 61885968, 82514624, 123771936, 165029248, 247543872, 330058496, 495087744, 990175488]

約数ペア:

[(1, 990175488), (2, 495087744), (3, 330058496), (4, 247543872), (6, 165029248), (8, 123771936), (12, 82514624), (16, 61885968), (24, 41257312), (32, 30942984), (48, 20628656), (64, 15471492), (96, 10314328), (128, 7735746), (192, 5157164), (256, 3867873), (384, 2578582), (768, 1289291), (991, 999168), (1301, 761088), (1982, 499584), (2602, 380544), (2973, 333056), (3903, 253696), (3964, 249792), (5204, 190272), (5946, 166528), (7806, 126848), (7928, 124896), (10408, 95136), (11892, 83264), (15612, 63424), (15856, 62448), (20816, 47568), (23784, 41632), (31224, 31712)]