20161177904

素因数分解:

$2^4\times 7^1\times {\mathrm{47}}^1\times {\mathrm{163}}^1\times {\mathrm{23497}}^1$

素因数の和:23722

約数の個数: 80

約数和(自身を含む): 45874111488

約数和(自身を除く): 25712933584

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 47, 56, 94, 112, 163, 188, 326, 329, 376, 652, 658, 752, 1141, 1304, 1316, 2282, 2608, 2632, 4564, 5264, 7661, 9128, 15322, 18256, 23497, 30644, 46994, 53627, 61288, 93988, 107254, 122576, 164479, 187976, 214508, 328958, 375952, 429016, 657916, 858032, 1104359, 1315832, 2208718, 2631664, 3830011, 4417436, 7660022, 7730513, 8834872, 15320044, 15461026, 17669744, 26810077, 30640088, 30922052, 53620154, 61280176, 61844104, 107240308, 123688208, 180010517, 214480616, 360021034, 428961232, 720042068, 1260073619, 1440084136, 2520147238, 2880168272, 5040294476, 10080588952, 20161177904]

約数ペア:

[(1, 20161177904), (2, 10080588952), (4, 5040294476), (7, 2880168272), (8, 2520147238), (14, 1440084136), (16, 1260073619), (28, 720042068), (47, 428961232), (56, 360021034), (94, 214480616), (112, 180010517), (163, 123688208), (188, 107240308), (326, 61844104), (329, 61280176), (376, 53620154), (652, 30922052), (658, 30640088), (752, 26810077), (1141, 17669744), (1304, 15461026), (1316, 15320044), (2282, 8834872), (2608, 7730513), (2632, 7660022), (4564, 4417436), (5264, 3830011), (7661, 2631664), (9128, 2208718), (15322, 1315832), (18256, 1104359), (23497, 858032), (30644, 657916), (46994, 429016), (53627, 375952), (61288, 328958), (93988, 214508), (107254, 187976), (122576, 164479)]