20890059904

素因数分解:

$2^7\times 7^1\times {\mathrm{1193}}^1\times {\mathrm{19543}}^1$

素因数の和:20757

約数の個数: 64

約数和(自身を含む): 47604493440

約数和(自身を除く): 26714433536

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 448, 896, 1193, 2386, 4772, 8351, 9544, 16702, 19088, 19543, 33404, 38176, 39086, 66808, 76352, 78172, 133616, 136801, 152704, 156344, 267232, 273602, 312688, 534464, 547204, 625376, 1068928, 1094408, 1250752, 2188816, 2501504, 4377632, 8755264, 17510528, 23314799, 46629598, 93259196, 163203593, 186518392, 326407186, 373036784, 652814372, 746073568, 1305628744, 1492147136, 2611257488, 2984294272, 5222514976, 10445029952, 20890059904]

約数ペア:

[(1, 20890059904), (2, 10445029952), (4, 5222514976), (7, 2984294272), (8, 2611257488), (14, 1492147136), (16, 1305628744), (28, 746073568), (32, 652814372), (56, 373036784), (64, 326407186), (112, 186518392), (128, 163203593), (224, 93259196), (448, 46629598), (896, 23314799), (1193, 17510528), (2386, 8755264), (4772, 4377632), (8351, 2501504), (9544, 2188816), (16702, 1250752), (19088, 1094408), (19543, 1068928), (33404, 625376), (38176, 547204), (39086, 534464), (66808, 312688), (76352, 273602), (78172, 267232), (133616, 156344), (136801, 152704)]