261239552

素因数分解:

$2^8\times 7^1\times {\mathrm{73}}^1\times {\mathrm{1997}}^1$

素因数の和:2093

約数の個数: 72

約数和(自身を含む): 604418976

約数和(自身を除く): 343179424

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 73, 112, 128, 146, 224, 256, 292, 448, 511, 584, 896, 1022, 1168, 1792, 1997, 2044, 2336, 3994, 4088, 4672, 7988, 8176, 9344, 13979, 15976, 16352, 18688, 27958, 31952, 32704, 55916, 63904, 65408, 111832, 127808, 130816, 145781, 223664, 255616, 291562, 447328, 511232, 583124, 894656, 1020467, 1166248, 1789312, 2040934, 2332496, 3578624, 4081868, 4664992, 8163736, 9329984, 16327472, 18659968, 32654944, 37319936, 65309888, 130619776, 261239552]

約数ペア:

[(1, 261239552), (2, 130619776), (4, 65309888), (7, 37319936), (8, 32654944), (14, 18659968), (16, 16327472), (28, 9329984), (32, 8163736), (56, 4664992), (64, 4081868), (73, 3578624), (112, 2332496), (128, 2040934), (146, 1789312), (224, 1166248), (256, 1020467), (292, 894656), (448, 583124), (511, 511232), (584, 447328), (896, 291562), (1022, 255616), (1168, 223664), (1792, 145781), (1997, 130816), (2044, 127808), (2336, 111832), (3994, 65408), (4088, 63904), (4672, 55916), (7988, 32704), (8176, 31952), (9344, 27958), (13979, 18688), (15976, 16352)]