20775328

素因数分解:

$2^5\times 7^1\times {\mathrm{163}}^1\times {\mathrm{569}}^1$

素因数の和:749

約数の個数: 48

約数和(自身を含む): 47113920

約数和(自身を除く): 26338592

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 163, 224, 326, 569, 652, 1138, 1141, 1304, 2276, 2282, 2608, 3983, 4552, 4564, 5216, 7966, 9104, 9128, 15932, 18208, 18256, 31864, 36512, 63728, 92747, 127456, 185494, 370988, 649229, 741976, 1298458, 1483952, 2596916, 2967904, 5193832, 10387664, 20775328]

約数ペア:

[(1, 20775328), (2, 10387664), (4, 5193832), (7, 2967904), (8, 2596916), (14, 1483952), (16, 1298458), (28, 741976), (32, 649229), (56, 370988), (112, 185494), (163, 127456), (224, 92747), (326, 63728), (569, 36512), (652, 31864), (1138, 18256), (1141, 18208), (1304, 15932), (2276, 9128), (2282, 9104), (2608, 7966), (3983, 5216), (4552, 4564)]