221874688

素因数分解:

$2^9\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1997}}^1$

素因数の和:2053

約数の個数: 80

約数和(自身を含む): 523252224

約数和(自身を除く): 301377536

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 56, 62, 64, 112, 124, 128, 217, 224, 248, 256, 434, 448, 496, 512, 868, 896, 992, 1736, 1792, 1984, 1997, 3472, 3584, 3968, 3994, 6944, 7936, 7988, 13888, 13979, 15872, 15976, 27776, 27958, 31952, 55552, 55916, 61907, 63904, 111104, 111832, 123814, 127808, 223664, 247628, 255616, 433349, 447328, 495256, 511232, 866698, 894656, 990512, 1022464, 1733396, 1789312, 1981024, 3466792, 3578624, 3962048, 6933584, 7157248, 7924096, 13867168, 15848192, 27734336, 31696384, 55468672, 110937344, 221874688]

約数ペア:

[(1, 221874688), (2, 110937344), (4, 55468672), (7, 31696384), (8, 27734336), (14, 15848192), (16, 13867168), (28, 7924096), (31, 7157248), (32, 6933584), (56, 3962048), (62, 3578624), (64, 3466792), (112, 1981024), (124, 1789312), (128, 1733396), (217, 1022464), (224, 990512), (248, 894656), (256, 866698), (434, 511232), (448, 495256), (496, 447328), (512, 433349), (868, 255616), (896, 247628), (992, 223664), (1736, 127808), (1792, 123814), (1984, 111832), (1997, 111104), (3472, 63904), (3584, 61907), (3968, 55916), (3994, 55552), (6944, 31952), (7936, 27958), (7988, 27776), (13888, 15976), (13979, 15872)]