20564896

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{1579}}^1$

素因数の和:1637

約数の個数: 48

約数和(自身を含む): 45390240

約数和(自身を除く): 24825344

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 37, 44, 74, 88, 148, 176, 296, 352, 407, 592, 814, 1184, 1579, 1628, 3158, 3256, 6316, 6512, 12632, 13024, 17369, 25264, 34738, 50528, 58423, 69476, 116846, 138952, 233692, 277904, 467384, 555808, 642653, 934768, 1285306, 1869536, 2570612, 5141224, 10282448, 20564896]

約数ペア:

[(1, 20564896), (2, 10282448), (4, 5141224), (8, 2570612), (11, 1869536), (16, 1285306), (22, 934768), (32, 642653), (37, 555808), (44, 467384), (74, 277904), (88, 233692), (148, 138952), (176, 116846), (296, 69476), (352, 58423), (407, 50528), (592, 34738), (814, 25264), (1184, 17369), (1579, 13024), (1628, 12632), (3158, 6512), (3256, 6316)]