20976256

素因数分解:

$2^7\times 7^1\times {\mathrm{41}}^1\times {\mathrm{571}}^1$

素因数の和:633

約数の個数: 64

約数和(自身を含む): 49008960

約数和(自身を除く): 28032704

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 41, 56, 64, 82, 112, 128, 164, 224, 287, 328, 448, 571, 574, 656, 896, 1142, 1148, 1312, 2284, 2296, 2624, 3997, 4568, 4592, 5248, 7994, 9136, 9184, 15988, 18272, 18368, 23411, 31976, 36544, 36736, 46822, 63952, 73088, 93644, 127904, 163877, 187288, 255808, 327754, 374576, 511616, 655508, 749152, 1311016, 1498304, 2622032, 2996608, 5244064, 10488128, 20976256]

約数ペア:

[(1, 20976256), (2, 10488128), (4, 5244064), (7, 2996608), (8, 2622032), (14, 1498304), (16, 1311016), (28, 749152), (32, 655508), (41, 511616), (56, 374576), (64, 327754), (82, 255808), (112, 187288), (128, 163877), (164, 127904), (224, 93644), (287, 73088), (328, 63952), (448, 46822), (571, 36736), (574, 36544), (656, 31976), (896, 23411), (1142, 18368), (1148, 18272), (1312, 15988), (2284, 9184), (2296, 9136), (2624, 7994), (3997, 5248), (4568, 4592)]