257247424

素因数分解:

$2^6\times 7^1\times {\mathrm{31}}^1\times {\mathrm{18523}}^1$

素因数の和:18573

約数の個数: 56

約数和(自身を含む): 602252288

約数和(自身を除く): 345004864

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 56, 62, 64, 112, 124, 217, 224, 248, 434, 448, 496, 868, 992, 1736, 1984, 3472, 6944, 13888, 18523, 37046, 74092, 129661, 148184, 259322, 296368, 518644, 574213, 592736, 1037288, 1148426, 1185472, 2074576, 2296852, 4019491, 4149152, 4593704, 8038982, 8298304, 9187408, 16077964, 18374816, 32155928, 36749632, 64311856, 128623712, 257247424]

約数ペア:

[(1, 257247424), (2, 128623712), (4, 64311856), (7, 36749632), (8, 32155928), (14, 18374816), (16, 16077964), (28, 9187408), (31, 8298304), (32, 8038982), (56, 4593704), (62, 4149152), (64, 4019491), (112, 2296852), (124, 2074576), (217, 1185472), (224, 1148426), (248, 1037288), (434, 592736), (448, 574213), (496, 518644), (868, 296368), (992, 259322), (1736, 148184), (1984, 129661), (3472, 74092), (6944, 37046), (13888, 18523)]