81480448

素因数分解:

$2^8\times 7^1\times {\mathrm{41}}^1\times {\mathrm{1109}}^1$

素因数の和:1173

約数の個数: 72

約数和(自身を含む): 190582560

約数和(自身を除く): 109102112

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 41, 56, 64, 82, 112, 128, 164, 224, 256, 287, 328, 448, 574, 656, 896, 1109, 1148, 1312, 1792, 2218, 2296, 2624, 4436, 4592, 5248, 7763, 8872, 9184, 10496, 15526, 17744, 18368, 31052, 35488, 36736, 45469, 62104, 70976, 73472, 90938, 124208, 141952, 181876, 248416, 283904, 318283, 363752, 496832, 636566, 727504, 993664, 1273132, 1455008, 1987328, 2546264, 2910016, 5092528, 5820032, 10185056, 11640064, 20370112, 40740224, 81480448]

約数ペア:

[(1, 81480448), (2, 40740224), (4, 20370112), (7, 11640064), (8, 10185056), (14, 5820032), (16, 5092528), (28, 2910016), (32, 2546264), (41, 1987328), (56, 1455008), (64, 1273132), (82, 993664), (112, 727504), (128, 636566), (164, 496832), (224, 363752), (256, 318283), (287, 283904), (328, 248416), (448, 181876), (574, 141952), (656, 124208), (896, 90938), (1109, 73472), (1148, 70976), (1312, 62104), (1792, 45469), (2218, 36736), (2296, 35488), (2624, 31052), (4436, 18368), (4592, 17744), (5248, 15526), (7763, 10496), (8872, 9184)]