20643648

素因数分解:

$2^6\times 3^1\times {\mathrm{79}}^1\times {\mathrm{1361}}^1$

素因数の和:1455

約数の個数: 56

約数和(自身を含む): 55351680

約数和(自身を除く): 34708032

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 79, 96, 158, 192, 237, 316, 474, 632, 948, 1264, 1361, 1896, 2528, 2722, 3792, 4083, 5056, 5444, 7584, 8166, 10888, 15168, 16332, 21776, 32664, 43552, 65328, 87104, 107519, 130656, 215038, 261312, 322557, 430076, 645114, 860152, 1290228, 1720304, 2580456, 3440608, 5160912, 6881216, 10321824, 20643648]

約数ペア:

[(1, 20643648), (2, 10321824), (3, 6881216), (4, 5160912), (6, 3440608), (8, 2580456), (12, 1720304), (16, 1290228), (24, 860152), (32, 645114), (48, 430076), (64, 322557), (79, 261312), (96, 215038), (158, 130656), (192, 107519), (237, 87104), (316, 65328), (474, 43552), (632, 32664), (948, 21776), (1264, 16332), (1361, 15168), (1896, 10888), (2528, 8166), (2722, 7584), (3792, 5444), (4083, 5056)]