221239904

素因数分解:

$2^5\times {\mathrm{17}}^2\times {\mathrm{47}}^1\times {\mathrm{509}}^1$

素因数の和:600

約数の個数: 72

約数和(自身を含む): 473467680

約数和(自身を除く): 252227776

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 47, 68, 94, 136, 188, 272, 289, 376, 509, 544, 578, 752, 799, 1018, 1156, 1504, 1598, 2036, 2312, 3196, 4072, 4624, 6392, 8144, 8653, 9248, 12784, 13583, 16288, 17306, 23923, 25568, 27166, 34612, 47846, 54332, 69224, 95692, 108664, 138448, 147101, 191384, 217328, 276896, 294202, 382768, 406691, 434656, 588404, 765536, 813382, 1176808, 1626764, 2353616, 3253528, 4707232, 6507056, 6913747, 13014112, 13827494, 27654988, 55309976, 110619952, 221239904]

約数ペア:

[(1, 221239904), (2, 110619952), (4, 55309976), (8, 27654988), (16, 13827494), (17, 13014112), (32, 6913747), (34, 6507056), (47, 4707232), (68, 3253528), (94, 2353616), (136, 1626764), (188, 1176808), (272, 813382), (289, 765536), (376, 588404), (509, 434656), (544, 406691), (578, 382768), (752, 294202), (799, 276896), (1018, 217328), (1156, 191384), (1504, 147101), (1598, 138448), (2036, 108664), (2312, 95692), (3196, 69224), (4072, 54332), (4624, 47846), (6392, 34612), (8144, 27166), (8653, 25568), (9248, 23923), (12784, 17306), (13583, 16288)]