20104736

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{769}}^1$

素因数の和:841

約数の個数: 48

約数和(自身を含む): 42688800

約数和(自身を除く): 22584064

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 43, 76, 86, 152, 172, 304, 344, 608, 688, 769, 817, 1376, 1538, 1634, 3076, 3268, 6152, 6536, 12304, 13072, 14611, 24608, 26144, 29222, 33067, 58444, 66134, 116888, 132268, 233776, 264536, 467552, 529072, 628273, 1058144, 1256546, 2513092, 5026184, 10052368, 20104736]

約数ペア:

[(1, 20104736), (2, 10052368), (4, 5026184), (8, 2513092), (16, 1256546), (19, 1058144), (32, 628273), (38, 529072), (43, 467552), (76, 264536), (86, 233776), (152, 132268), (172, 116888), (304, 66134), (344, 58444), (608, 33067), (688, 29222), (769, 26144), (817, 24608), (1376, 14611), (1538, 13072), (1634, 12304), (3076, 6536), (3268, 6152)]