20860672

素因数分解:

$2^8\times 7^2\times {\mathrm{1663}}^1$

素因数の和:1693

約数の個数: 54

約数和(自身を含む): 48467328

約数和(自身を除く): 27606656

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 128, 196, 224, 256, 392, 448, 784, 896, 1568, 1663, 1792, 3136, 3326, 6272, 6652, 11641, 12544, 13304, 23282, 26608, 46564, 53216, 81487, 93128, 106432, 162974, 186256, 212864, 325948, 372512, 425728, 651896, 745024, 1303792, 1490048, 2607584, 2980096, 5215168, 10430336, 20860672]

約数ペア:

[(1, 20860672), (2, 10430336), (4, 5215168), (7, 2980096), (8, 2607584), (14, 1490048), (16, 1303792), (28, 745024), (32, 651896), (49, 425728), (56, 372512), (64, 325948), (98, 212864), (112, 186256), (128, 162974), (196, 106432), (224, 93128), (256, 81487), (392, 53216), (448, 46564), (784, 26608), (896, 23282), (1568, 13304), (1663, 12544), (1792, 11641), (3136, 6652), (3326, 6272)]