28100065520

素因数分解:

$2^4\times 5^1\times {\mathrm{163}}^1\times {\mathrm{2154913}}^1$

素因数の和:2155089

約数の個数: 40

約数和(自身を含む): 65733496656

約数和(自身を除く): 37633431136

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 163, 326, 652, 815, 1304, 1630, 2608, 3260, 6520, 13040, 2154913, 4309826, 8619652, 10774565, 17239304, 21549130, 34478608, 43098260, 86196520, 172393040, 351250819, 702501638, 1405003276, 1756254095, 2810006552, 3512508190, 5620013104, 7025016380, 14050032760, 28100065520]

約数ペア:

[(1, 28100065520), (2, 14050032760), (4, 7025016380), (5, 5620013104), (8, 3512508190), (10, 2810006552), (16, 1756254095), (20, 1405003276), (40, 702501638), (80, 351250819), (163, 172393040), (326, 86196520), (652, 43098260), (815, 34478608), (1304, 21549130), (1630, 17239304), (2608, 10774565), (3260, 8619652), (6520, 4309826), (13040, 2154913)]