81540256

素因数分解:

$2^5\times 7^1\times {\mathrm{313}}^1\times {\mathrm{1163}}^1$

素因数の和:1493

約数の個数: 48

約数和(自身を含む): 184209984

約数和(自身を除く): 102669728

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 224, 313, 626, 1163, 1252, 2191, 2326, 2504, 4382, 4652, 5008, 8141, 8764, 9304, 10016, 16282, 17528, 18608, 32564, 35056, 37216, 65128, 70112, 130256, 260512, 364019, 728038, 1456076, 2548133, 2912152, 5096266, 5824304, 10192532, 11648608, 20385064, 40770128, 81540256]

約数ペア:

[(1, 81540256), (2, 40770128), (4, 20385064), (7, 11648608), (8, 10192532), (14, 5824304), (16, 5096266), (28, 2912152), (32, 2548133), (56, 1456076), (112, 728038), (224, 364019), (313, 260512), (626, 130256), (1163, 70112), (1252, 65128), (2191, 37216), (2326, 35056), (2504, 32564), (4382, 18608), (4652, 17528), (5008, 16282), (8141, 10016), (8764, 9304)]